APA (7th ed.) Citation

Tan, W. T., & Ng, B. S. (1980). A Chemical Survey of the Batang Belungkung River and the Gombak River.

Chicago Style (17th ed.) Citation

Tan, W. T., and B. S. Ng. A Chemical Survey of the Batang Belungkung River and the Gombak River. 1980.

MLA (9th ed.) Citation

Tan, W. T., and B. S. Ng. A Chemical Survey of the Batang Belungkung River and the Gombak River. 1980.

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