Ultrasonic properties of biliary calculi.

MLA

Purdom, R. C., et al. “Ultrasonic Properties of Biliary Calculi.” Radiology, vol. 136, no. 3, Sept. 1980, pp. 729–32. EBSCOhost, https://doi.org/10.1148/radiology.136.3.7403555.

APA

Purdom, R. C., Thomas, S. R., Kereiakes, J. G., Spitz, H. B., Goldenberg, N. J., & Krugh, K. B. (1980). Ultrasonic properties of biliary calculi. Radiology, 136(3), 729–732. https://doi.org/10.1148/radiology.136.3.7403555

Chicago

Purdom, R C, S R Thomas, J G Kereiakes, H B Spitz, N J Goldenberg, and K B Krugh. 1980. “Ultrasonic Properties of Biliary Calculi.” Radiology 136 (3): 729–32. doi:10.1148/radiology.136.3.7403555.