Cita APA

Stafford, E. S., Ballinger, W. F., Zuidema, G. D., & Cameron, J. L. (1967). Benign gastric ulcer with life-threatening hemorrhage.

Citación estilo Chicago

Stafford, E S., W F. Ballinger, G D. Zuidema, y J L. Cameron. Benign Gastric Ulcer With Life-threatening Hemorrhage. 1967.

Cita MLA

Stafford, E S., W F. Ballinger, G D. Zuidema, y J L. Cameron. Benign Gastric Ulcer With Life-threatening Hemorrhage. 1967.