Cita APA (7th ed.)

Hackenberg, R. A. The poverty explosion: Population growth and income in Davao City, 1972. Philippine planning journal.

Cita Chicago (17th ed.)

Hackenberg, Robert A. "The Poverty Explosion: Population Growth and Income in Davao City, 1972." Philippine Planning Journal .

Cita MLA (9th ed.)

Hackenberg, Robert A. "The Poverty Explosion: Population Growth and Income in Davao City, 1972." Philippine Planning Journal, .