Citazione APA

Allee, W. C., & Schmidt, K. P. Ecological animal geography: : 2nd ed (2nd ed.).

Stile di citazione Chicago

Allee, W. C., e Karl P. Schmidt. Ecological Animal Geography: : 2nd Ed. 2nd ed.

Citazione MLA

Allee, W. C., e Karl P. Schmidt. Ecological Animal Geography: : 2nd Ed. 2nd ed.