Citazione Stile APA (7a Edizione)

Ang, E. R., Calces, A. A. C., Roxas, A. Y., & Sangalang, S. P. A retrospective study of the Top 100 drugs in the Surgery Ward of the Philippine General Hospital for the 3rd Quarter of 1997.

Citazione stile Chigago Style (17a edizione)

Ang, Enalyn R., Agnes Abigail C. Calces, Angeline Y. Roxas, e Siena P. Sangalang. A Retrospective Study of the Top 100 Drugs in the Surgery Ward of the Philippine General Hospital for the 3rd Quarter of 1997.

Citatione MLA (9a ed.)

Ang, Enalyn R., et al. A Retrospective Study of the Top 100 Drugs in the Surgery Ward of the Philippine General Hospital for the 3rd Quarter of 1997.