APA (7th ed.) Citation

Ahmed, S. (2015). Learning English the easy way (7th ed.). S. Ahmed.

Chicago Style (17th ed.) Citation

Ahmed, Sadruddin. Learning English the Easy Way. 7th ed. Dhaka: S. Ahmed, 2015.

MLA (9th ed.) Citation

Ahmed, Sadruddin. Learning English the Easy Way. 7th ed. S. Ahmed, 2015.