Cita APA (7a ed.)

Educational Services Inc. African Education Program. (1966). Secondary C two: Geometry (Prelim. ed.). Science Research Associates.

Cita Chicago Style (17a ed.)

Educational Services Inc. African Education Program. Secondary C Two: Geometry. Prelim. ed. Chicag, IL: Science Research Associates, 1966.

Cita MLA (9a ed.)

Educational Services Inc. African Education Program. Secondary C Two: Geometry. Prelim. ed. Science Research Associates, 1966.