APA aipamena

Castillo, J. B. (1966). Some factors affecting achievement in elementary science. s.n.].

Chicago Style aipamena

Castillo, Jovito B. Some Factors Affecting Achievement in Elementary Science. [Quezon City: s.n.], 1966.

MLA aipamena

Castillo, Jovito B. Some Factors Affecting Achievement in Elementary Science. s.n.], 1966.