Cita APA

Shaw, D. B., & Evans, R. C. (1981). Chronic Heart Block and Sinoatrial Disorder. J R Coll Physicians Lond.

Citación estilo Chicago

Shaw, D. B., y R. C. Evans. "Chronic Heart Block and Sinoatrial Disorder." J R Coll Physicians Lond 1981.

Cita MLA

Shaw, D. B., y R. C. Evans. "Chronic Heart Block and Sinoatrial Disorder." J R Coll Physicians Lond 1981.