MLA

Spiro, Stephen G.; Silvestri, Gerard A; Agustí, Alvar; Agusti, Alvar, et al. Clinical Respiratory Medicine : Expert Consult - Online and Print (4th Edition). W.B. Saunders, 2012.

APA

Spiro, A., Agustí, A., Silvestri, G. A, Spiro, S. G, Agustí Alvar Agustí, A., Silvestri Gerard A. Silvestri, M. S, & Spiro, S. (2012). Clinical Respiratory Medicine : Expert Consult - Online and Print (4th Edition). W.B. Saunders.

Chicago

Spiro, Stephen G.; Silvestri, Gerard A; Agustí, Alvar; Agusti, Alvar, Alvar Agustí, Gerard A Silvestri, Stephen G Spiro, Alvar Agustí Alvar Agustí, M. S Silvestri Gerard A. Silvestri, and Stephen Spiro. Clinical Respiratory Medicine : Expert Consult - Online and Print (4th Edition). : W.B. Saunders, 2012.