W. Nicholson - C. Snyder, Cengage

$114.78

F. Mochon - V. Carreon, Mcgraw Hill

$52.80

Roberto H. Frank, Mcgraw Hill

$38.40

B. Bernanke - R. Frank, Mcgraw-hill

$54.00

Case - Fair, Prentice Hall

$33.60

Parkin - Esquivel, Pearson

$57.39