Cita APA (7th ed.)

Science Education Center, U. o. t. P. (1972). Environmental science 1: Pupil's guide part 2. Science Education Center, University of the Philippines.

Cita Chicago (17th ed.)

Science Education Center, University of the Philippines. Environmental Science 1: Pupil's Guide Part 2. Quezon City: Science Education Center, University of the Philippines, 1972.

Cita MLA (9th ed.)

Science Education Center, University of the Philippines. Environmental Science 1: Pupil's Guide Part 2. Science Education Center, University of the Philippines, 1972.