APA (7e ed.) Bronvermelding

Yap, H. T. (2006). From inside the Berlin Wall. University of the Philippines Press.

Chicago (17e ed.) Bronvermelding

Yap, Helen T. From Inside the Berlin Wall. Quezon City: University of the Philippines Press, 2006.

MLA (9e ed.) Bronvermelding

Yap, Helen T. From Inside the Berlin Wall. University of the Philippines Press, 2006.