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The use of the available secondary literature is strongly recommended to reference information on chemical safety, in preference to either (primary) journal articles or (tertiary) generalist textbooks: see Wikipedia:Manual of Style (chemistry)/Safety for more details and examples of secondary sources.
A certified reference material is a particular form of measurement standard. Reference materials are particularly important for analytical chemistry and clinical analysis. [2] Since most analytical instrumentation is comparative, it requires a sample of known composition (reference material) for accurate calibration.
In contrast to books that are loaned, a reference book or reference-only book in a library may only be used in the library and may not be borrowed from the library. Many such books are reference works (in the first sense), which are usually used briefly or photocopied from and, therefore, do not need to be borrowed.
An individual primary source should never be cited or juxtaposed so as to "debunk" or contradict the conclusions of a reliable secondary source, unless the primary source itself directly makes such a claim (see Wikipedia:Synthesis of published material that advances a position). Primary sources favoring a minority opinion should not be ...
Using textbook sharing, students share the physical textbook with other students, and the cost of the book is divided among the users of the textbook. Over the life of the textbook, if 4 students use the textbook, the cost of the textbook for each student will be 25% of the total cost of the book.
LibreTexts' current primary support is from the 2018 Open Textbook Pilot Program award from the Department of Education Organization Act. [7] [10] [5] [11] FIPSE [12] Other funding comes from the University of California Davis, the University of California Davis Library, [5] and the California State University System both through MERLOT and its Affordable Learning Solutions (AL$) program.
Book reviews are generally secondary sources if they provide information beyond a basic description of the book's contents. Book reviews are often a mix of primary and secondary material: e.g., an analysis of some aspect of the book (secondary) plus the reviewer's rating or opinion about the book (primary).
CRC Press is a leading publisher of engineering handbooks and references and textbooks across virtually all scientific disciplines. [3] 64th Edition of CRC Handbook of Chemistry and Physics with an American dollar bill for scale; weighs 6 pounds 5.0 ounces (2.86 kg)
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