International City Manager's Association, Goodman, W. I., & Freund, E. C. (1968). Principles and practice of urban planning. International City Manager's Association.
Citazione stile Chigago Style (17a edizione)International City Manager's Association, William I. Goodman, e Eric C. Freund. Principles and Practice of Urban Planning. Washington, D. C: International City Manager's Association, 1968.
Citatione MLA (9a ed.)International City Manager's Association, et al. Principles and Practice of Urban Planning. International City Manager's Association, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.