APA (7th ed.) Citation

Silva. (2013). English New work book -Grade 7 (4.). Godage Brothers.

Chicago Style (17th ed.) Citation

Silva. English New Work Book -Grade 7. 4. Colombo: Godage Brothers, 2013.

MLA (9th ed.) Citation

Silva. English New Work Book -Grade 7. 4. Godage Brothers, 2013.

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