APA (7th ed.) Citation

Guillermo, G. (2009). Great men and women of science. Isa-Jecho Pub.

Chicago Style (17th ed.) Citation

Guillermo, Gwyn. Great Men and Women of Science. Quezon City: Isa-Jecho Pub, 2009.

MLA (9th ed.) Citation

Guillermo, Gwyn. Great Men and Women of Science. Isa-Jecho Pub, 2009.