Cita APA (7th ed.)

Griffiths, E., Hodson, J., Vohra, R., Marriott, P., Katbeh, T., Zino, S., . . . Segaran, A. (2018). Utilisation of an operative difficulty grading scale for laparoscopic cholecystectomy. Springer Verlag.

Cita Chicago (17th ed.)

Griffiths, E., J. Hodson, R. Vohra, P. Marriott, T. Katbeh, S. Zino, A. Nassar, i A. Segaran. Utilisation of an Operative Difficulty Grading Scale for Laparoscopic Cholecystectomy. Springer Verlag, 2018.

Cita MLA (9th ed.)

Griffiths, E., et al. Utilisation of an Operative Difficulty Grading Scale for Laparoscopic Cholecystectomy. Springer Verlag, 2018.