Gaya APA

Madiadipoera, T. (1980). Felspar Sand Occurrences In The Coastal Area Of Medan, North Sumatera Indonesia . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Madiadipoera, T.. "Felspar Sand Occurrences In The Coastal Area Of Medan, North Sumatera Indonesia". Bandung: Pusat Sumber Daya Geologi, 1980. Bukan Logam.