APA Style

Digester gas bio. (1977). Bandung: ITB.

Chicago Style

Digester gas bio. 1. Bandung: ITB, 1977. TXB.

MLA Style

Digester gas bio. 1. Bandung: ITB, 1977. TXB.

Turabian Style

Digester gas bio. Bandung: ITB, 1977. TXB.