APA (7 वां संस्करण) प्रशस्ति पत्र

(1978). Labor market profile, Region IV-A. Department of Labor, Bureau of Employment Services, Public Employment Office.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Labor Market Profile, Region IV-A. San Pablo City: Department of Labor, Bureau of Employment Services, Public Employment Office, 1978.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Labor Market Profile, Region IV-A. Department of Labor, Bureau of Employment Services, Public Employment Office, 1978.