O'Neill, J. J. (1975). The essentials of planning: A personal view. Publications Office, United States Catholic Conference.
Style de citation Chicago (17e éd.)O'Neill, John J. The Essentials of Planning: A Personal View. Washington: Publications Office, United States Catholic Conference, 1975.
Style de citation MLA (8e éd.)O'Neill, John J. The Essentials of Planning: A Personal View. Publications Office, United States Catholic Conference, 1975.
Attention : ces citations peuvent ne pas être correctes à 100%.