Soedjoko, T. (1977). Pasir kwarsa Indonesia: Quartz sands of Indonesia. Departemen Pertambangan.
Chicago Style CitationSoedjoko, Tirtosoekotjo. Pasir Kwarsa Indonesia: Quartz Sands of Indonesia. Departemen Pertambangan, 1977.
MLA CitationSoedjoko, Tirtosoekotjo. Pasir Kwarsa Indonesia: Quartz Sands of Indonesia. Departemen Pertambangan, 1977.
Warning: These citations may not always be 100% accurate.