MLA

Clearfield, Frank, and Barbara T Osgood. Sociological Aspects of the Adoption of Conservation Practices. USA, 1986.

APA

Clearfield, F., & Osgood, B. T. (1986). Sociological aspects of the adoption of conservation practices. USA.

Chicago

Clearfield, Frank, and Barbara T Osgood. Sociological Aspects of the Adoption of Conservation Practices. USA, 1986.