Zamboanga del Norte (Province) Provincial Development Staff. (1975). Five year development program, 1976-1980 Comprehensive plan: Province of Zamboanga del Norte. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZamboanga del Norte (Province) Provincial Development Staff. Five Year Development Program, 1976-1980 Comprehensive Plan: Province of Zamboanga Del Norte. [S.l: s.n, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZamboanga del Norte (Province) Provincial Development Staff. Five Year Development Program, 1976-1980 Comprehensive Plan: Province of Zamboanga Del Norte. s.n, 1975.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.