Style de citation APA

Preston, R. C. (1988). The NPL ultrasound beam calibrator. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 35(2), 122.

Style de citation Chicago

Preston, R C. "The NPL Ultrasound Beam Calibrator." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 35, no. 2 (1988): 122.

Style de citation MLA

Preston, R C. "The NPL Ultrasound Beam Calibrator." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 35, no. 2, 1988, p. 122.