APA aipamena

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.

Chicago Style aipamena

Ang, Enalyn R., Agnes Abigail C. Calces, Angeline Y. Roxas, and 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.

MLA aipamena

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.