APA

Barnes R. S. K., Calow P. & Olive P. J. W. (1993). The invertebrates. Oxford, England: Blackwell Science Press.

Chicago

Barnes R S K, Calow Peter and Olive P J W. 1993. The invertebrates. Oxford, England: Blackwell Science Press.

Harvard

Barnes R. S. K., Calow P. and Olive P. J. W. (1993). The invertebrates. Oxford, England: Blackwell Science Press.

MLA

Barnes R S K, Calow Peter and Olive P J W. The invertebrates. Oxford, England: Blackwell Science Press. 1993.