Παραπομπή σε μορφή APA (7η εκδ.)

Educational Services Inc. African Education Program. (1965). Secondary four: Algebra (Prelim. ed.). Science Research Associates.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Educational Services Inc. African Education Program. Secondary Four: Algebra. Prelim. ed. Chicago, IL: Science Research Associates, 1965.

Παραπομπή σε μορφή MLA (9th εκδ.)

Educational Services Inc. African Education Program. Secondary Four: Algebra. Prelim. ed. Science Research Associates, 1965.