Pernia, E. M. (1974). On some determinants of Philippine urbanization. s.n.].
Chicago Style (17th ed.) CitationPernia, Ernesto M. On Some Determinants of Philippine Urbanization. [S.l: s.n.], 1974.
MLA引文Pernia, Ernesto M. On Some Determinants of Philippine Urbanization. s.n.], 1974.
警告:這些引文格式不一定是100%准確.