Thomas M. de Fer, Lippincott

$78.00

R. Hyatt - P. Scanlon, Lippincott

$23.50

Francisco A. Orduña P., Diaz de Santos

$30.00

Rodolfo Rodriguez C., Mcgraw Hill

$41.00

J. Cloherty - E. Eichenwa, Lippincott

$70.13

T. Browne - G. Holmes, Lippincott

$50.00

Julio Sepulveda Saavedra, Mcgraw Hill

$90.00

Burke A. Cunha, Mcgraw Hill

$25.00

C. Dieguez - R. Yturriaga, Mcgraw Hill

$40.00

Salvador Zubiran, Mcgraw Hill

$56.00

R. Zane - J. Kosowsky, Lippincott

$46.00

E. Mayeaux - J. Cox, Lippincott

$142.00

S. Agabegi - E. Agabegi, Lippincott

$50.00

O. Quiros - J. Quiros, Amolca

$42.00

C. Stone - R. Humphries, Mcgraw Hill

$90.00