APA (7th ed.) Citation

Piyadigamage. (2016). Supplementary Class Work Book Grade 11. Samudra Book Publications.

Chicago Style (17th ed.) Citation

Piyadigamage. Supplementary Class Work Book Grade 11. Colombo: Samudra Book Publications, 2016.

MLA (9th ed.) Citation

Piyadigamage. Supplementary Class Work Book Grade 11. Samudra Book Publications, 2016.

Warning: These citations may not always be 100% accurate.