Gaya APA

Bradford,E.F., . (1972). The Geology & Mineral Resources of The Gunung Jer-ai Area, Kedah . West Malaysia: Geological Survey Headquarters.

Gaya MLA

Bradford,E.F., . "The Geology & Mineral Resources of The Gunung Jer-ai Area, Kedah". West Malaysia: Geological Survey Headquarters, 1972. Text.