Cita APA (7th ed.)

Educational Services Inc. African Education Program. (1965). Basic concepts of mathematics: An introductory text for teachers (Preilim. ed.). ESI.

Cita Chicago (17th ed.)

Educational Services Inc. African Education Program. Basic Concepts of Mathematics: An Introductory Text for Teachers. Preilim. ed. Watertown, MA: ESI, 1965.

Cita MLA (9th ed.)

Educational Services Inc. African Education Program. Basic Concepts of Mathematics: An Introductory Text for Teachers. Preilim. ed. ESI, 1965.