Cita APA

Gibbons, W., & Odum, E. P. (1993). Keeping all the pieces: Perspectives on natural history and the environment. Washington, D. C.: Smithsonian Institution.

Citación estilo Chicago

Gibbons, Whit, y Eugene P. Odum. Keeping All the Pieces: Perspectives On Natural History and the Environment. Washington, D. C.: Smithsonian Institution, 1993.

Cita MLA

Gibbons, Whit, y Eugene P. Odum. Keeping All the Pieces: Perspectives On Natural History and the Environment. Washington, D. C.: Smithsonian Institution, 1993.