APA استشهاد

Leidner, J. (1981). Plastics waste: : recovery of economic value. Marcel Dekker.

استشهاد بنمط شيكاغو

Leidner, Jacob. Plastics Waste: : Recovery of Economic Value. NewYork: Marcel Dekker, 1981.

MLA استشهاد

Leidner, Jacob. Plastics Waste: : Recovery of Economic Value. Marcel Dekker, 1981.