Cita APA

Harris, J. (1988). a step by step book about guppies (1a. ed.). New Jersey, USA: T.F.H. Publications.

Citación estilo Chicago

Harris, J.C. A Step By Step Book About Guppies. 1a. ed. New Jersey, USA: T.F.H. Publications, 1988.

Cita MLA

Harris, J.C. A Step By Step Book About Guppies. 1a. ed. New Jersey, USA: T.F.H. Publications, 1988.