Cita APA

Welch, R. W., Luckmann, K., Ricks, P. M., Drake, S. T., & Gates, G. A. (1979). Manometry of the Normal Upper Esophageal Sphincter and its Alterations in Laryngectomy.

Chicago Style Citation

Welch, Richard W., Kenneth Luckmann, Phillip M. Ricks, Samuel T. Drake, i George A. Gates. Manometry of the Normal Upper Esophageal Sphincter and Its Alterations in Laryngectomy. 1979.

Cita MLA

Welch, Richard W., et al. Manometry of the Normal Upper Esophageal Sphincter and Its Alterations in Laryngectomy. 1979.