Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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