APA (7th ed.) Citation

Cruz, W., Conway, Z. T., & Francisco, H. A. (1988). The on-site and downstream costs of soil erosion. Philippine Institute for Development Studies.

Chicago Style (17th ed.) Citation

Cruz, Wilfrido, Zenaida Tapawan Conway, and Herminia A. Francisco. The On-site and Downstream Costs of Soil Erosion. Makati, Metro Manila: Philippine Institute for Development Studies, 1988.

MLA (9th ed.) Citation

Cruz, Wilfrido, et al. The On-site and Downstream Costs of Soil Erosion. Philippine Institute for Development Studies, 1988.