APA (7th ed.) Citation

Islam, R. (1970). An introduction to collequial Bengali. CBDB.

Chicago Style (17th ed.) Citation

Islam, Rafiqul. An Introduction to Collequial Bengali. Dhaka: CBDB, 1970.

MLA (9th ed.) Citation

Islam, Rafiqul. An Introduction to Collequial Bengali. CBDB, 1970.