Style de citation APA (7e éd.)

Penano, L. C. Z. (1973). Socio-psychological predictors of academic achievement. s.n.].

Style de citation Chicago (17e éd.)

Penano, Leticia Cecilia Zabala. Socio-psychological Predictors of Academic Achievement. [Quezon City: s.n.], 1973.

Style de citation MLA (9e éd.)

Penano, Leticia Cecilia Zabala. Socio-psychological Predictors of Academic Achievement. s.n.], 1973.