APA (7th ed.) Citation

Bear, J., & Irmay, S. (1968). Physical principles of water percolation and seepage. Unesco.

Chicago Style (17th ed.) Citation

Bear, J., and S. Irmay. Physical Principles of Water Percolation and Seepage. Paris: Unesco, 1968.

MLA (9th ed.) Citation

Bear, J., and S. Irmay. Physical Principles of Water Percolation and Seepage. Unesco, 1968.

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