Gaya APA

Proposed Cooperative Study For Feldspar Beneficiation From Liparitic Tuffs Of North Sumatra,Indonesia. (1981). Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Proposed Cooperative Study For Feldspar Beneficiation From Liparitic Tuffs Of North Sumatra,Indonesia. . Bandung: Pusat Sumber Daya Geologi, 1981. Bukan Logam.