APA način citiranja (7. izdanje)

Haskel, S., & Sygoda, D. (1977). Contemporary Biology. Amsco School Publications, Inc.

Čikaški stil citiranja (17. izdanje)

Haskel, Sebastian, i David Sygoda. Contemporary Biology. New York, NY: Amsco School Publications, Inc, 1977.

MLA način citiranja (9. izdanje)

Haskel, Sebastian, i David Sygoda. Contemporary Biology. Amsco School Publications, Inc, 1977.