Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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