APA aipamena

Barr, B. B., & Leyden, M. B. (1980). Life science. Addison-Wesley.

Chicago Style aipamena

Barr, Bonnie B., and Michael B. Leyden. Life Science. Menlo Park, CA: Addison-Wesley, 1980.

MLA aipamena

Barr, Bonnie B., and Michael B. Leyden. Life Science. Addison-Wesley, 1980.