Cita APA (7a ed.)

Sabado, F. P. Paradoxes as learning activities for High School Mathematics.

Cita Chicago Style (17a ed.)

Sabado, Federico P. Paradoxes as Learning Activities for High School Mathematics. Quezon City, 1979.

Cita MLA (9a ed.)

Sabado, Federico P. Paradoxes as Learning Activities for High School Mathematics.