Citazione Stile APA (7a Edizione)

Guzman, F. S. D., & et al. (1999). Introduction to chemistry. Learning Resource Center.

Citazione stile Chigago Style (17a edizione)

Guzman, Florecita S De, e et al. Introduction to Chemistry. Diliman, Quezon City: Learning Resource Center, 1999.

Citatione MLA (9a ed.)

Guzman, Florecita S De, e et al. Introduction to Chemistry. Learning Resource Center, 1999.