Παραπομπή APA

(1951). Planning 1951: Proceedings of the annual National Planning Conference held in Pittsburgh, Pennsylvania October 14-17, 1951. Chicago: American Society of Planning Officials.

Παραπομπή Chicago Style

Planning 1951: Proceedings of the Annual National Planning Conference Held in Pittsburgh, Pennsylvania October 14-17, 1951. Chicago: American Society of Planning Officials, 1951.

Παραπομπή MLA

Planning 1951: Proceedings of the Annual National Planning Conference Held in Pittsburgh, Pennsylvania October 14-17, 1951. Chicago: American Society of Planning Officials, 1951.

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