Gaya APA

Anonim, . (1981). Energy for Rural Development: Renewable Resources & Alternative Technologies for Developing Countries (Cet. 4.--). Washington D.C.: National Academy of Scienes.

Gaya MLA

Anonim, . "Energy for Rural Development: Renewable Resources & Alternative Technologies for Developing Countries". Cet. 4.-- Washington D.C.: National Academy of Scienes, 1981. Text.