APA citiranje

Bourdillon, P. D., Foale, R. A., & Rickards, A. F. (1980). Identification of atrial septal defects by cross-sectional contrast echocardiography.

Citação norma Chicago

Bourdillon, P D., R A. Foale, and A F. Rickards. Identification of Atrial Septal Defects By Cross-sectional Contrast Echocardiography. 1980.

MLA citiranje

Bourdillon, P D., R A. Foale, and A F. Rickards. Identification of Atrial Septal Defects By Cross-sectional Contrast Echocardiography. 1980.