Gaya APA

BINGHAM, R, C., WALSTAD, W, B. (2002). STUDY GUIDE TO ACCOMPANY MCCONNELL AND BRUE ECONOMICS . Amerika: MC GRAW HILL.

Gaya MLA

BINGHAM, ROBERT, C.., WALSTAD, WILLIAM, B.. "STUDY GUIDE TO ACCOMPANY MCCONNELL AND BRUE ECONOMICS". Amerika: MC GRAW HILL, 2002. Text.