De Leon, L. P. (1973). The effect of grouping on achievement, classroom participation and interaction of students in modern geometry at the Manuel L. Quezon (Public) High School, Manila. s.n.].
Chicagoスタイル(17版)引用形式De Leon, Lorenzo Padua. The Effect of Grouping on Achievement, Classroom Participation and Interaction of Students in Modern Geometry at the Manuel L. Quezon (Public) High School, Manila. [Quezon City: s.n.], 1973.
MLA(9版)引用形式De Leon, Lorenzo Padua. The Effect of Grouping on Achievement, Classroom Participation and Interaction of Students in Modern Geometry at the Manuel L. Quezon (Public) High School, Manila. s.n.], 1973.
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