APA (7th ed.) Citation

Garrido, T. P. (1973). Supplementary teaching materials on pollution for use in high school science classes. s.n.].

Chicago Style (17th ed.) Citation

Garrido, Teresa P. Supplementary Teaching Materials on Pollution for Use in High School Science Classes. [Quezon City: s.n.], 1973.

MLA (9th ed.) Citation

Garrido, Teresa P. Supplementary Teaching Materials on Pollution for Use in High School Science Classes. s.n.], 1973.