Frohlich, E. D., & Rypins, H. (1993). Rypin's questions & answers for basic sciences review (2nd ed.). Lippincott.
Čikaški stil citiranja (17. izdanje)Frohlich, Edward D., i Harold Rypins. Rypin's Questions & Answers for Basic Sciences Review. 2nd ed. Philadelphia: Lippincott, 1993.
MLA način citiranja (9. izdanje)Frohlich, Edward D., i Harold Rypins. Rypin's Questions & Answers for Basic Sciences Review. 2nd ed. Lippincott, 1993.
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