Gaya APA

Wolfenden, E. (1960). The Geology and Mineral Resources of the Lower Rajang Valley and Adjoining Areas, Sarawak . Sarawak: Goverment Printing Office.

Gaya MLA

Wolfenden, E.B.. "The Geology and Mineral Resources of the Lower Rajang Valley and Adjoining Areas, Sarawak". Sarawak: Goverment Printing Office, 1960. Text.