APA (7th ed.) Citation

De Leon, I. (1971). An industrial survey of the City of Davao. University of the Philippines.

Chicago Style (17th ed.) Citation

De Leon, Ibarra. An Industrial Survey of the City of Davao. Quezon City: University of the Philippines, 1971.

MLA (9th ed.) Citation

De Leon, Ibarra. An Industrial Survey of the City of Davao. University of the Philippines, 1971.

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