E. Hulley - S. Cummings, Wolters Kluwer

$127.38

Joseph E. Muscolino, Lippincott

$69.60

C. Dieguez - R. Yturriaga, Mcgraw Hill

$48.00

Miriam Guana, Mcgraw Hill

$61.89

R. Hyatt - P. Scanlon, Lippincott

$28.20

Esp. y Mgs. Aura M. Parra, Luz

$8.30

C. Braun - C. Anderson, Lippincott

$114.00

Maria A. Obando, Ula

$12.00

Leonard Crowley, Mcgraw Hill

$68.40

Cassimeris

$102.00

O. Quiros - J. Quiros, Amolca

$50.40

Roberto Arenas, Mcgraw Hill

$62.40

Carlos A. Roldan, Lippincott

$135.60

F.j. Blanco - J.d. Cañete, Panamericana

$46.80

E. Mayeaux - J. Cox, Lippincott

$170.40