APA (7th ed.) Citation

Planning Resources and Operations Sytems. (1970). Professional planning consultants. PROS.

Chicago Style (17th ed.) Citation

Planning Resources and Operations Sytems. Professional Planning Consultants. Quezon City: PROS, 1970.

MLA (9th ed.) Citation

Planning Resources and Operations Sytems. Professional Planning Consultants. PROS, 1970.

Warning: These citations may not always be 100% accurate.