Thomas M. de Fer, Lippincott

$93.60

Trujillo - Becerra- Rivas, Mcgraw Hill

$111.48

D. Cline - O. Ma -, Mcgraw Hill

$134.40

Roberto Arenas, Mcgraw Hill

$62.40

Salvador Zubiran, Mcgraw Hill

$67.20

Joseph E. Muscolino, Lippincott

$69.60

Francisco A. Orduña P., Diaz de Santos

$36.00

$8.40

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

P. Paulman - A. Paulman, Wolters Klumer

$82.09

Carlos A. Roldan, Lippincott

$135.60

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00

R. Hyatt - P. Scanlon, Lippincott

$28.20

R. Baldor - A. Ehrlich, Lippincott

$156.00

Leonard Crowley, Mcgraw Hill

$68.40