APA-ийн эшлэл(7 дахь хэвлэлт)

Mahmud, S. (1985). A Text Book of Higher Trigonometry (5th ed.). The Ideal Library.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Mahmud, Sultan. A Text Book of Higher Trigonometry. 5th ed. Dhaka: The Ideal Library, 1985.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Mahmud, Sultan. A Text Book of Higher Trigonometry. 5th ed. The Ideal Library, 1985.