APA (7th ed.) Citation

Gould, P. (1969). Spatial diffusion / by Peter R. Gould. Association of American Geographers.

Chicago Style (17th ed.) Citation

Gould, Peter. Spatial Diffusion / by Peter R. Gould. Association of American Geographers, 1969.

MLA (9th ed.) Citation

Gould, Peter. Spatial Diffusion / by Peter R. Gould. Association of American Geographers, 1969.

Warning: These citations may not always be 100% accurate.