APA (7th ed.) Citation

K.Ariyasinghe. Scienc Technologywork work book Grade-9 (p.2.). sasavi publish.

Chicago Style (17th ed.) Citation

K.Ariyasinghe. Scienc Technologywork Work Book Grade-9. p.2. colombo: sasavi publish.

MLA (9th ed.) Citation

K.Ariyasinghe. Scienc Technologywork Work Book Grade-9. p.2. sasavi publish.

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