APA (7th ed.) Citation

Drs. Arifinal Chaniago,Drs. Ijod Sirodjudin. (1981). Memelihara Kelestarian Lingkungan hidup. Angkasa.

Chicago Style (17th ed.) Citation

Drs. Arifinal Chaniago,Drs. Ijod Sirodjudin. Memelihara Kelestarian Lingkungan Hidup. Angkasa, 1981.

MLA (8th ed.) Citation

Drs. Arifinal Chaniago,Drs. Ijod Sirodjudin. Memelihara Kelestarian Lingkungan Hidup. Angkasa, 1981.

Warning: These citations may not always be 100% accurate.