Cita APA

Sampson, R. J. Economics: Concepts, applications and analysis / Roy J. Sampson and Thomas W. Calmus. U.S.A. : Houghton Mifflin.

Citación estilo Chicago

Sampson, Roy J. Economics: Concepts, Applications and Analysis / Roy J. Sampson and Thomas W. Calmus. U.S.A. : Houghton Mifflin.

Cita MLA

Sampson, Roy J. Economics: Concepts, Applications and Analysis / Roy J. Sampson and Thomas W. Calmus. U.S.A. : Houghton Mifflin.