Julio Corredor, Vadell Hermanos

$7.00

Burke A. Cunha, Mcgraw Hill

$25.00

Freddy Leal, Ucv

$8.00

$5.00

Gaceta Nº 40.846, la Piedra

$1.00

Tulio Hernandez, el Nacional

$5.00

James-otis Rodner S., Academia de Ciencias

$6.00

Brian Tracy, Aguilar

$20.00

Gaceta Nº 39.382, Njr

$1.00

Carlson A. Bruce, Mcgraw Hill

$35.00

C. Pelekais - G. Vega, Cira de Pelekais

$9.13

Gaceta Nº 38.419, Njr

$1.00

A. Abad - M. Chirinos, San Pablo

$7.00

Laura Moreno Altamirano, Mcgraw Hill

$51.58

L. Gartner - J. Hiatt, Mcgraw Hill

$60.00

Carmen Santiago, Csg

$3.65

Gaceta N. 38.763, Njr

$1.00

W. Hurley - C. Denegar, Lippincott

$73.57

Jose Saban Ruiz, Diaz de Santos

$30.00

Gabriel A. Cabrera Ibarra, Vadell Hermanos

$7.00

L. Rowland - T. Pedley, Lippincott

$100.00

Dr. Miguel Sira, Norma

$6.80

Gaceta Nº 496, Njr

$2.00

Lair Ribeiro, Urano

$10.00

Gaceta Nº 40.157, Njr

$3.50

H. Rondon de Sanson, Paredes

$7.50

$2.85

Lieu - Sorby, Cengage

$40.00

Wayne W. Dyer, Grijalbo

$28.00

M. Width - T. Reinhard, Lippincott

$25.00