Echenhoff, J. E. (1981). The yearbook of anesthesia 1981. YearBook Medical.
Cita Chicago (17th ed.)Echenhoff, James E. The Yearbook of Anesthesia 1981. YearBook Medical, 1981.
Cita MLA (9th ed.)Echenhoff, James E. The Yearbook of Anesthesia 1981. YearBook Medical, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.