APA citiranje

London, N. J., Bailey, R. G., & Hall, A. W. (1990). Spontaneous benign pneumoperitoneum complicating scleroderma in the absence of pneumatosis cystoides intestinalis. BMJ Group.

Citação norma Chicago

London, N. J., R. G. Bailey, and A. W. Hall. Spontaneous Benign Pneumoperitoneum Complicating Scleroderma in the Absence of Pneumatosis Cystoides Intestinalis. BMJ Group, 1990.

MLA citiranje

London, N. J., R. G. Bailey, and A. W. Hall. Spontaneous Benign Pneumoperitoneum Complicating Scleroderma in the Absence of Pneumatosis Cystoides Intestinalis. BMJ Group, 1990.