Παραπομπή APA

(1968). Planning 1968: Selected papers from ASPO National Planning Conference San Francisco May 4-9, 1968. Chicago: American Society of Planning Officials.

Παραπομπή Chicago Style

Planning 1968: Selected Papers From ASPO National Planning Conference San Francisco May 4-9, 1968. Chicago: American Society of Planning Officials, 1968.

Παραπομπή MLA

Planning 1968: Selected Papers From ASPO National Planning Conference San Francisco May 4-9, 1968. Chicago: American Society of Planning Officials, 1968.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.