APA (7th ed.) Citation

Educational Services Inc. African Education Program. (1964). Mathematics secondary two: Real numbers, graphing, similar figures and trigonometry (Prelim. ed.). ESI.

Chicago Style (17th ed.) Citation

Educational Services Inc. African Education Program. Mathematics Secondary Two: Real Numbers, Graphing, Similar Figures and Trigonometry. Prelim. ed. Watertown, MA: ESI, 1964.

MLA (9th ed.) Citation

Educational Services Inc. African Education Program. Mathematics Secondary Two: Real Numbers, Graphing, Similar Figures and Trigonometry. Prelim. ed. ESI, 1964.