Cita APA

Cotton, L. T., & Roberts, V. C. (1975). Letter: Prophylaxis against deep vein thrombosis.

Chicago Style Citation

Cotton, L T., i V C. Roberts. Letter: Prophylaxis against Deep Vein Thrombosis. 1975.

Cita MLA

Cotton, L T., i V C. Roberts. Letter: Prophylaxis against Deep Vein Thrombosis. 1975.

Atenció: Aquestes cites poden no estar 100% correctes.