APA citiranje

Economou, G., & Ward-McQuaid, N. (1973). Emergency surgery in bleeding peptic ulcer.

Citação norma Chicago

Economou, G., and N. Ward-McQuaid. Emergency Surgery in Bleeding Peptic Ulcer. 1973.

MLA citiranje

Economou, G., and N. Ward-McQuaid. Emergency Surgery in Bleeding Peptic Ulcer. 1973.

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