Cita APA

Frings, H. (1970). Concepts of zoology. The Macmillan company.

Citación estilo Chicago

Frings, Hubert. Concepts of Zoology. London: The Macmillan company, 1970.

Cita MLA

Frings, Hubert. Concepts of Zoology. The Macmillan company, 1970.