APA aipamena

Colquhoun, E. M. C. (1976). Two on their travels [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style aipamena

Colquhoun, Ethel Maud Cookson. Two on Their Travels [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.

MLA aipamena

Colquhoun, Ethel Maud Cookson. Two on Their Travels [microform]. Photoduplication Service. University of the Philippines Library, 1976.