APA (7th ed.) Citation

Zulkifley, M., Ng, T., Raj, J., Hashim, R., Ghani, A., Shuib, M., & Ashraf, M. (2013). Definitions and engineering classifications of tropical lowland peats.

Chicago Style (17th ed.) Citation

Zulkifley, M.T.M, T.F Ng, J.K Raj, Roslan Hashim, A. Ghani, M.K Shuib, and M.A Ashraf. Definitions and Engineering Classifications of Tropical Lowland Peats. 2013.

MLA (9th ed.) Citation

Zulkifley, M.T.M, et al. Definitions and Engineering Classifications of Tropical Lowland Peats. 2013.