APA (7th ed.) Citation

Subong, R. M. L., Espina, C. S. P., & Litonjua, E. D. A. (1997). Planning recommendations for underground pedestrian walkways.

Chicago Style (17th ed.) Citation

Subong, Rhesa Mae L., Cristopher Stonewall P. Espina, and Emmanuel David A. Litonjua. Planning Recommendations for Underground Pedestrian Walkways. 1997.

MLA (9th ed.) Citation

Subong, Rhesa Mae L., et al. Planning Recommendations for Underground Pedestrian Walkways. 1997.