APA (7th ed.) Citation

Cheng, L. S. (2005). GCE O Level science (chemistry). Redsport Publishing.

Chicago Style (17th ed.) Citation

Cheng, Lee Sook. GCE O Level Science (chemistry). Singapore: Redsport Publishing, 2005.

MLA (9th ed.) Citation

Cheng, Lee Sook. GCE O Level Science (chemistry). Redsport Publishing, 2005.

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