Cita APA

o Wilford Olsen. (1967). Animal parasites: Their biology and life cycles (2.). Burgess publihing company.

Citación estilo Chicago

o Wilford Olsen. Animal Parasites: Their Biology and Life Cycles. 2. Burgess publihing company, 1967.

Cita MLA

o Wilford Olsen. Animal Parasites: Their Biology and Life Cycles. 2. Burgess publihing company, 1967.

Warning: These citations may not always be 100% accurate.