APA (7e ed.) Bronvermelding

Smith, W. D. P. (1976). Contributions to the stratigraphy and fossil invertibrate fauna of the Philippine Islands [microform]. Photoduplication Service University of the Philippines Library.

Chicago (17e ed.) Bronvermelding

Smith, Warren Du Pre. Contributions to the Stratigraphy and Fossil Invertibrate Fauna of the Philippine Islands [microform]. Quezon City: Photoduplication Service University of the Philippines Library, 1976.

MLA (9e ed.) Bronvermelding

Smith, Warren Du Pre. Contributions to the Stratigraphy and Fossil Invertibrate Fauna of the Philippine Islands [microform]. Photoduplication Service University of the Philippines Library, 1976.