APA (7th ed.) Citation

Hayes, S. P. (1959). Measuring the results of development projects: A manual for the use of field workers. Unesco.

Chicago Style (17th ed.) Citation

Hayes, Samuel Perkins. Measuring the Results of Development Projects: A Manual for the Use of Field Workers. [Paris]: Unesco, 1959.

MLA (8th ed.) Citation

Hayes, Samuel Perkins. Measuring the Results of Development Projects: A Manual for the Use of Field Workers. Unesco, 1959.