APA (7th ed.) Citation

Tan, M. (1973). The use of an improvised overhead projector to save on chemicals and time. s.n.].

Chicago Style (17th ed.) Citation

Tan, Merle. The Use of an Improvised Overhead Projector to Save on Chemicals and Time. [Quezon City: s.n.], 1973.

MLA (9th ed.) Citation

Tan, Merle. The Use of an Improvised Overhead Projector to Save on Chemicals and Time. s.n.], 1973.