APA-viite

DIULIO, E. A., & SALVATORE, D. (2004). ScHAUMS ; OUT LINE OF THEORY & PROBLEMS OF PRINCIPLES OF ECONOMICS.

Chicago-tyylinen lähdeviittaus

DIULIO, EUGENE A., ja DOMINICK SALVATORE. ScHAUMS ; OUT LINE OF THEORY & PROBLEMS OF PRINCIPLES OF ECONOMICS. NEW DELHI, TATA McGRAW-HILL PUBLISHING COMPANY, 2004.

MLA-viite

DIULIO, EUGENE A., ja DOMINICK SALVATORE. ScHAUMS ; OUT LINE OF THEORY & PROBLEMS OF PRINCIPLES OF ECONOMICS. 2004.