R. Hyatt - P. Scanlon, Lippincott

$28.20

E. Mayeaux - J. Cox, Lippincott

$170.40

Leonard Crowley, Mcgraw Hill

$68.40

M. Breskin - K. Dumith, Mcgraw Hill

$69.60

Linda E. Muños Espinosa, Mcgraw Hill

$144.00

D. Cline - O. Ma -, Mcgraw Hill

$134.40

Schwartz y Otros, Mcgraw Hill

$62.40

Jose F. Gonzalez, Mcgraw Hill

$45.60

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

T.w. Sadler, Lippincott

$38.40

Roberto Arenas, Mcgraw Hill

$62.40

S. Joo - A. Kau, Lippincott

$69.12

Rodolfo Rodriguez C., Mcgraw Hill

$49.20

$8.40

Julio Sepulveda Saavedra, Mcgraw Hill

$108.00