Castro, A. (1976). Fifty-two years of educational service of the National University. University of the Philippines Library.
Chicago-Zitierstil (17. Ausg.)Castro, Adolfo. Fifty-two Years of Educational Service of the National University. Quezon City: University of the Philippines Library, 1976.
MLA-Zitierstil (9. Ausg.)Castro, Adolfo. Fifty-two Years of Educational Service of the National University. University of the Philippines Library, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.