APA Edition Citation

Tharp, R. G. W. (1969). Behaviour modification in the natural environment.

Chicago Edition Citation

Tharp, Roland G; Wetzel. Behaviour Modification in the Natural Environment. Academic Press, New York, 1969.

MLA Edition Citation

Tharp, Roland G; Wetzel. Behaviour Modification in the Natural Environment. 1969.

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