APA (7th ed.) Citation

Becklake, Azni Ahmad, & Lau. (1997). Pencemaran. Vinpress.

Chicago Style (17th ed.) Citation

Becklake, Azni Ahmad, and Lau. Pencemaran. Kuala Lumpur: Vinpress, 1997.

MLA (8th ed.) Citation

Becklake, et al. Pencemaran. Vinpress, 1997.