APA (7th ed.) Citation

Zainuddin, R., Abdullah @ Adnan, N., & Mat Din, S. Z. (2008). Health awareness amongst adults above 40 years of age / Ruhana Zainuddin, Norshaieda Abdullah @ Adnan and Syaidatul Zarina Mat Din.

Chicago Style (17th ed.) Citation

Zainuddin, Ruhana, Norshaieda Abdullah @ Adnan, and Syaidatul Zarina Mat Din. Health Awareness Amongst Adults Above 40 Years of Age / Ruhana Zainuddin, Norshaieda Abdullah @ Adnan and Syaidatul Zarina Mat Din. 2008.

MLA (9th ed.) Citation

Zainuddin, Ruhana, et al. Health Awareness Amongst Adults Above 40 Years of Age / Ruhana Zainuddin, Norshaieda Abdullah @ Adnan and Syaidatul Zarina Mat Din. 2008.