Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Castillo, Jovito B. Some Factors Affecting Achievement in Elementary Science. Quezon City, 1966.

Cita MLA (9th ed.)

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