Citazione Stile APA (7a Edizione)

De Leon, L. P. (1977). The effect of grouping on achievement, classroom participation and interaction of students in modern geometry at the Manuel L. Quezon (Public) High School, Manila. University of the Philippines Library.

Citazione stile Chigago Style (17a edizione)

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: University of the Philippines Library, 1977.

Citatione MLA (9a ed.)

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. University of the Philippines Library, 1977.