Olalia, A. A. (1944). A comparative study of the Christian constitution of states and the constitution of the Philippine commonwealth. The Catholic University of America Press.
Chicago-referens (17:e uppl.)Olalia, Alexander Ayson. A Comparative Study of the Christian Constitution of States and the Constitution of the Philippine Commonwealth. Washington, D.C.: The Catholic University of America Press, 1944.
MLA-referens (8:e uppl.)Olalia, Alexander Ayson. A Comparative Study of the Christian Constitution of States and the Constitution of the Philippine Commonwealth. The Catholic University of America Press, 1944.
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