APA-referens (7:e uppl.)

Roberts, M. B. V. (1986). Biology: A functional approach (4th ed.). Nelson.

Chicago-referens (17:e uppl.)

Roberts, M. B. V. Biology: A Functional Approach. 4th ed. London: Nelson, 1986.

MLA-referens (8:e uppl.)

Roberts, M. B. V. Biology: A Functional Approach. 4th ed. Nelson, 1986.