Παραπομπή APA

(1967). Planning 1967: Selected papers from ASPO National Planning Conference Houston, Texas April 1-6, 1967. Chicago: American Society of Planning Officials.

Παραπομπή Chicago Style

Planning 1967: Selected Papers From ASPO National Planning Conference Houston, Texas April 1-6, 1967. Chicago: American Society of Planning Officials, 1967.

Παραπομπή MLA

Planning 1967: Selected Papers From ASPO National Planning Conference Houston, Texas April 1-6, 1967. Chicago: American Society of Planning Officials, 1967.

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