Francisco A. Orduña P., Diaz de Santos

$30.00

S. Mcphee - M. Papadakis, Mcgraw Hill

$78.00

J. Garcia - J. Lopez, Mcgraw Hill

$47.00

P. Paulman - A. Paulman, Wolters Klumer

$68.41

Trujillo - Becerra- Rivas, Mcgraw Hill

$92.90

D. Fitzgibbon - J. Loeser, Lippincott

$125.00

Esp. y Mgs. Aura M. Parra, Luz

$6.92

$7.00

Julio Sepulvedad S., Mcgraw Hill

$34.00

I. Martin - Lacave, Diaz de Santos

$60.00

T. Browne - G. Holmes, Lippincott

$50.00

Maria A. Obando, Ula

$10.00

B. Shakuntala Baliga, Mcgraw Hill

$90.00

D. Nicoll - C. Mark, Mcgraw Hill

$51.58

R. Baldor - A. Ehrlich, Lippincott

$130.00