Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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