APA citiranje

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

Chicago Edition Citation

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

MLA citiranje

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

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