APA

Barnes R. S. K., Calow P., Olive P. J. W., Barnes R. S. K. & Olive P. J. W. (1993). The invertebrates. Oxford [u.a.]: Blackwell Scientific Publications.

Chicago

Barnes Richard S K, Calow Peter, Olive Peter J W, Barnes Richard Steven Kent and Olive P J W. 1993. The invertebrates. Oxford [u.a.]: Blackwell Scientific Publications.

Harvard

Barnes R. S. K., Calow P., Olive P. J. W., Barnes R. S. K. and Olive P. J. W. (1993). The invertebrates. Oxford [u.a.]: Blackwell Scientific Publications.

MLA

Barnes Richard S K, Calow Peter, Olive Peter J W, Barnes Richard Steven Kent and Olive P J W. The invertebrates. Oxford [u.a.]: Blackwell Scientific Publications. 1993.