Gaya APA

Veres, J, H, P, ;, J, L, H, ;, R, C. (1991). Biology: bringing science to life . toronto: Mc Graw Hill.

Gaya MLA

Veres, John, H., Postlethwait, ;, Janet, L., Hopson, ;, Ruth, C.. "Biology: bringing science to life". toronto: Mc Graw Hill, 1991. Text.