Gaya APA

Mineral, D, S, D. (1971). Soil Problems in Civil Engineering . Bandung: Direktorat Sumber Daya Mineral.

Gaya MLA

Mineral, Direktorat, Sumber, Daya. "Soil Problems in Civil Engineering". Bandung: Direktorat Sumber Daya Mineral, 1971. Umum.