APA (7th ed.) Citation

Yam, P. (2004). Secondary Level,Vocabulary & Usage-Level 1. SAP Publications (M) Sdn.Bhd..

Chicago Style (17th ed.) Citation

Yam, Peter. Secondary Level,Vocabulary & Usage-Level 1. Subang Jaya: SAP Publications (M) Sdn.Bhd., 2004.

MLA (9th ed.) Citation

Yam, Peter. Secondary Level,Vocabulary & Usage-Level 1. SAP Publications (M) Sdn.Bhd., 2004.

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