Citação norma APA

Dietrich, C. F., Ignee, A., Trojan, J., Fellbaum, C., & Schuessler, G. (2004). Improved characterisation of histologically proven liver tumours by contrast enhanced ultrasonography during the portal venous and specific late phase of SHU 508A. Copyright 2004 by Gut.

Citação norma Chicago

Dietrich, C F., A. Ignee, J. Trojan, C. Fellbaum, and G. Schuessler. Improved Characterisation of Histologically Proven Liver Tumours By Contrast Enhanced Ultrasonography During the Portal Venous and Specific Late Phase of SHU 508A. Copyright 2004 by Gut, 2004.

Citação norma MLA

Dietrich, C F., et al. Improved Characterisation of Histologically Proven Liver Tumours By Contrast Enhanced Ultrasonography During the Portal Venous and Specific Late Phase of SHU 508A. Copyright 2004 by Gut, 2004.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.