Wester, P. J. (1977). Zamboanga Province: Its natural resources and opportunities for agricultural development [microform]. Photoduplication Service, University of the Philippines Library.
Style de citation Chicago (17e éd.)Wester, Peter Johnson. Zamboanga Province: Its Natural Resources and Opportunities for Agricultural Development [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
Style de citation MLA (9e éd.)Wester, Peter Johnson. Zamboanga Province: Its Natural Resources and Opportunities for Agricultural Development [microform]. Photoduplication Service, University of the Philippines Library, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.