N. Goran - C. Johan, Deusto

$1.00

Edward W. Said, Debate

$1.00

$8.50

Steve Bain, Mcgraw Hill

$56.25

A. J. Hartley, Plaza Janes

$1.00

Steven E. Landsburg, Taurus

$1.00

Gomez Navarro, Pearson

$1.00

Brujula Escolar, el Nacional

$0.35

$1.00

$8.70

Anonimo, Debate

$2.14

$1.00

El Nacional, el Nacional

$5.00

Borghio Mario, Grijalbo

$6.25

E. Tineo - M. Alfonzo, el Nacional

$0.35