Otto, J. H., & Blanc, S. S. (1951). Biology investigations: A workbook and laboratory manual (Rev. ed.). Holt, Rinehart and Winston.
Čikaški stil citiranja (17. izdanje)Otto, James Howard, i Sam S. Blanc. Biology Investigations: A Workbook and Laboratory Manual. Rev. ed. New York: Holt, Rinehart and Winston, 1951.
MLA način citiranja (8. izdanje)Otto, James Howard, i Sam S. Blanc. Biology Investigations: A Workbook and Laboratory Manual. Rev. ed. Holt, Rinehart and Winston, 1951.
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