APA (7th ed.) Citation

University of the Philippines (Diliman) Science Education Center. (1983). Let's keep the air clean. Science Education Center, University of the Philippines.

Chicago Style (17th ed.) Citation

University of the Philippines (Diliman) Science Education Center. Let's Keep the Air Clean. Quezon City: Science Education Center, University of the Philippines, 1983.

MLA (9th ed.) Citation

University of the Philippines (Diliman) Science Education Center. Let's Keep the Air Clean. Science Education Center, University of the Philippines, 1983.