Gaya APA

Willem, V, B, R. (1949). The Geology Of Indonesia: General Geology Of Indonesia And Adjacent Archipelagoes (Volume IA). The Hague: Government Printing Office.

Gaya MLA

Willem, VAN, BEMMELEN,, Reinout. "The Geology Of Indonesia: General Geology Of Indonesia And Adjacent Archipelagoes". Volume IA The Hague: Government Printing Office, 1949. Text.