APA (7th ed.) Citation

International Hydrological Programme, IHP Working Group "Teaching Aids in Hydrology", Unesco, & Jowitt, P. W. (1985). Teaching aids in hydrology (2nd ed.). Unesco.

Chicago Style (17th ed.) Citation

International Hydrological Programme, IHP Working Group "Teaching Aids in Hydrology", Unesco, and P. W. Jowitt. Teaching Aids in Hydrology. 2nd ed. Paris: Unesco, 1985.

MLA (9th ed.) Citation

International Hydrological Programme, et al. Teaching Aids in Hydrology. 2nd ed. Unesco, 1985.