APA ציטוט

Sumich, J. L. (1999). An introduction to the biology of marine life. Boston: McGraw-Hill.

Trích dẫn kiểu Chicago

Sumich, James L. An Introduction to the Biology of Marine Life. Boston: McGraw-Hill, 1999.

ציטוט MLA

Sumich, James L. An Introduction to the Biology of Marine Life. Boston: McGraw-Hill, 1999.