Παραπομπή APA

(1972). The pollution crisis ( Volume 2 ): Official documents. Oceana Publications.

Παραπομπή Chicago Style

The Pollution Crisis ( Volume 2 ): Official Documents. New York: Oceana Publications, 1972.

Παραπομπή MLA

The Pollution Crisis ( Volume 2 ): Official Documents. Oceana Publications, 1972.