APA ציטוט

Sewell,W R Derrck. (1974). Environmental quality. Sage Sage Publications Ltd.

Chicago Edition Citation

Sewell,W R Derrck. Environmental Quality. London: Sage Sage Publications Ltd, 1974.

ציטוט MLA

Sewell,W R Derrck. Environmental Quality. Sage Sage Publications Ltd, 1974.