APA استشهاد

Brown,Jennifer. (1991). Environmetal Threats-Perception, Analysis and Management. CBS Publishsers.

استشهاد بنمط شيكاغو

Brown,Jennifer. Environmetal Threats-Perception, Analysis and Management. New Delhi: CBS Publishsers, 1991.

MLA استشهاد

Brown,Jennifer. Environmetal Threats-Perception, Analysis and Management. CBS Publishsers, 1991.