Pena, A. D. (1972). An analysis of the distribution of GIA projects 1966-70.
Chicagoスタイル(17版)引用形式Pena, Alberto D. An Analysis of the Distribution of GIA Projects 1966-70. Quezon City, 1972.
MLA(9版)引用形式Pena, Alberto D. An Analysis of the Distribution of GIA Projects 1966-70. 1972.
警告: この引用は必ずしも正確ではありません.