APA (7e ed.) Bronvermelding

Smith, W. D. P. (1907). Petrography of some rocks from Benguet province. Bureau of Print.

Chicago (17e ed.) Bronvermelding

Smith, Warren Du Pre. Petrography of Some Rocks from Benguet Province. Manila: Bureau of Print, 1907.

MLA (9e ed.) Bronvermelding

Smith, Warren Du Pre. Petrography of Some Rocks from Benguet Province. Bureau of Print, 1907.

Let op: Deze citaties zijn niet altijd 100% accuraat.