Cita APA

Selman, P. H., & Selman, P. H. (1981). Ecology and planning: An introductory study. London, Sydney: G. Godwin.

Citación estilo Chicago

Selman, Paul H., y Paul H. Selman. Ecology and Planning: An Introductory Study. London, Sydney: G. Godwin, 1981.

Cita MLA

Selman, Paul H., y Paul H. Selman. Ecology and Planning: An Introductory Study. London, Sydney: G. Godwin, 1981.