APA (7th ed.) Citation

Schulz, E. F. (1989). Problems in applied hydrology (Rev ed.). Water Resources Publications.

Chicago Style (17th ed.) Citation

Schulz, Edmond F. Problems in Applied Hydrology. Rev ed. Littleon, Colo.: Water Resources Publications, 1989.

MLA (9th ed.) Citation

Schulz, Edmond F. Problems in Applied Hydrology. Rev ed. Water Resources Publications, 1989.