Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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.