Cita APA (7a ed.)

Sylvester, D., & Burrill, T. (1976). Early man and medicine. McDougall.

Cita Chicago Style (17a ed.)

Sylvester, David, y Ted Burrill. Early Man and Medicine. Edinburgh: McDougall, 1976.

Cita MLA (9a ed.)

Sylvester, David, y Ted Burrill. Early Man and Medicine. McDougall, 1976.