Cita APA (7a ed.)

Educational Services Inc. African Education Program. (1963). Mathematics secondary one: Introduction to algebra and to the language of geometry (Prelim. ed.). ESI.

Cita Chicago Style (17a ed.)

Educational Services Inc. African Education Program. Mathematics Secondary One: Introduction to Algebra and to the Language of Geometry. Prelim. ed. Watertown, MA: ESI, 1963.

Cita MLA (9a ed.)

Educational Services Inc. African Education Program. Mathematics Secondary One: Introduction to Algebra and to the Language of Geometry. Prelim. ed. ESI, 1963.