Several years ago, four new prefixes, for representing very large and very small measurements, were introduced into the International System of Units (Système International d'Unités, or SI): yotta, zetta, zepto and yocto.
Ivey, Keith C. Editorial Eye, The (1996). Articles>Style Guides>Standards>Scientific Communication
A Psychiatrist Using DSM-III: The Influence of a Charter Document in Psychiatry

Explores the influence of DSM-III in the limited sphere of a single child psychiatrist.
McCarthy, Lucille Parkinson. WAC Clearinghouse (1991). Articles>Scientific Communication>Standards
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