APA (7th ed.) Citation

IF, G., KD, H., A, B., & JA, W. (1973). An assessment of clinical tests of gastric emptying before and after operation. The British journal of surgery, 60(4), 307.

Chicago Style (17th ed.) Citation

IF, Gunn, Harding KD, Brown A, and Williams JA. "An Assessment of Clinical Tests of Gastric Emptying Before and After Operation." The British Journal of Surgery 60, no. 4 (1973): 307.

MLA (9th ed.) Citation

IF, Gunn, et al. "An Assessment of Clinical Tests of Gastric Emptying Before and After Operation." The British Journal of Surgery, vol. 60, no. 4, 1973, p. 307.