Cita APA (7th ed.)

Hackenberg, R. A. (1973). A developing city in a dual economy: Economic and demographic trends in Davao City, Philippines, 1972. Davao Action Information Center.

Cita Chicago (17th ed.)

Hackenberg, Robert A. A Developing City in a Dual Economy: Economic and Demographic Trends in Davao City, Philippines, 1972. Davao City: Davao Action Information Center, 1973.

Cita MLA (9th ed.)

Hackenberg, Robert A. A Developing City in a Dual Economy: Economic and Demographic Trends in Davao City, Philippines, 1972. Davao Action Information Center, 1973.