APA (7th ed.) Citation

Welaratna, B. C. Understanding Mathematics Grade 7. S.Godage And Company.

Chicago Style (17th ed.) Citation

Welaratna, Bandula C. Understanding Mathematics Grade 7. Clombo: S.Godage And Company.

MLA (9th ed.) Citation

Welaratna, Bandula C. Understanding Mathematics Grade 7. S.Godage And Company.

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