Ricketts, D., Hartley, J., Patterson, M., Harries, W., & Hitchin, D. (1994). An orthopaedic theatre timings survey. Royal College of Surgeons of England.
Chicago Style aipamenaRicketts, D., J. Hartley, M. Patterson, W. Harries, and D. Hitchin. An Orthopaedic Theatre Timings Survey. Royal College of Surgeons of England, 1994.
MLA aipamenaRicketts, D., et al. An Orthopaedic Theatre Timings Survey. Royal College of Surgeons of England, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.