Cita APA

Ellis, B. W., Cox, A. G., Wilkins, R., & de Lacey, G. (1979). Operative cholangiography.

Chicago Style Citation

Ellis, B W., A G. Cox, R. Wilkins, i G. de Lacey. Operative Cholangiography. 1979.

Cita MLA

Ellis, B W., A G. Cox, R. Wilkins, i G. de Lacey. Operative Cholangiography. 1979.