APA (7 ম সংস্করণ) উদ্ধৃতি

Westermann, D., & Ward, I. C. (1933). Practical phonetics for students of African languages. Pub. for the International institute of African languages & cultures by Oxford University press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Westermann, Diedrich, এবং Ida Caroline Ward. Practical Phonetics for Students of African Languages. London: Pub. for the International institute of African languages & cultures by Oxford University press, 1933.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Westermann, Diedrich, এবং Ida Caroline Ward. Practical Phonetics for Students of African Languages. Pub. for the International institute of African languages & cultures by Oxford University press, 1933.