APA (7th ed.) Citation

K.Ariyasinghe. Science Work Book Grade-9. nwe Asiri.

Chicago Style (17th ed.) Citation

K.Ariyasinghe. Science Work Book Grade-9. colombo: nwe Asiri.

MLA (9th ed.) Citation

K.Ariyasinghe. Science Work Book Grade-9. nwe Asiri.

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