APA (7th ed.) Citation

Hayes, S. P. (1966). Evaluating development projects: A manual for use of field workers (2. ed., rev.). UNESCO.

Chicago Style (17th ed.) Citation

Hayes, Samuel P. Evaluating Development Projects: A Manual for Use of Field Workers. 2. ed., rev. Paris: UNESCO, 1966.

MLA (9th ed.) Citation

Hayes, Samuel P. Evaluating Development Projects: A Manual for Use of Field Workers. 2. ed., rev. UNESCO, 1966.