Wald, G., & Wald, G. . ,. . . a. (1966). Twenty-six afternoons of biology: An introductory laboratory manual, (2nd ed.). Addison-Wesley.
Čikaški stil citiranja (17. izdanje)Wald, George, i George ,,,,,[et al.] Wald. Twenty-six Afternoons of Biology: An Introductory Laboratory Manual,. 2nd ed. Reading, Mass: Addison-Wesley, 1966.
MLA način citiranja (9. izdanje)Wald, George, i George ,,,,,[et al.] Wald. Twenty-six Afternoons of Biology: An Introductory Laboratory Manual,. 2nd ed. Addison-Wesley, 1966.
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