APA Edition Citation

Albert Westphal, H Munhpfordt, & Heinz Muhlpfordt. (1976). Protozoa. Blackie Glashgow.

Chicago Edition Citation

Albert Westphal, H Munhpfordt, and Heinz Muhlpfordt. Protozoa. Blackie Glashgow, 1976.

MLA Edition Citation

Albert Westphal, et al. Protozoa. Blackie Glashgow, 1976.