APA (7th ed.) Citation

Wijewickrama. (2017). Chemistry past Papers & Answers 2000-2016. Sadeepa Publications.

Chicago Style (17th ed.) Citation

Wijewickrama. Chemistry Past Papers & Answers 2000-2016. Colombo: Sadeepa Publications, 2017.

MLA (9th ed.) Citation

Wijewickrama. Chemistry Past Papers & Answers 2000-2016. Sadeepa Publications, 2017.

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