APA

E. P, Gardner L. S. & Campbell R. a. (2006). Paradigm shifts and tapeworm systematics. : .

Chicago

E. P, Gardner L S and Campbell R a. 2006. Paradigm shifts and tapeworm systematics. : .

Harvard

E. P, Gardner L. S. and Campbell R. a. (2006). Paradigm shifts and tapeworm systematics. : .

MLA

E. P, Gardner L S and Campbell R a. Paradigm shifts and tapeworm systematics. : . 2006.