APA aipamena

Sang, C. T., Wallwork, J., Miller, H. C., Kitchin, A. H., Davidson, K. G., & Caves, P. K. (1979). Early clinical experience with the Hancock porcine xenograft valve prosthesis.

Chicago Style aipamena

Sang, C T., J. Wallwork, H C. Miller, A H. Kitchin, K G. Davidson, and P K. Caves. Early Clinical Experience With the Hancock Porcine Xenograft Valve Prosthesis. 1979.

MLA aipamena

Sang, C T., et al. Early Clinical Experience With the Hancock Porcine Xenograft Valve Prosthesis. 1979.