MLA

Colley, Daniel G.; Secor, W. Evan, Daniel G Colley, and W. Evan Secor. Schistosomiasis. Dordrecht: Springer US, 2005.

APA

Colley, W. Evan, Colley, D. G, & Secor, W. Evan. (2005). Schistosomiasis. Dordrecht: Springer US.

Chicago

Colley, Daniel G.; Secor, W. Evan, Daniel G Colley, and W. Evan Secor. Schistosomiasis. Dordrecht: Springer US, 2005.