James Nilsson - Susan R., Addison-wesley Iberoameri

$7.00

Javier Dario Restrepo, Debate

$6.00

Steve Bain, Mcgraw Hill

$56.25

Deepak Gupta, Lippincott

$25.00

Carmen Cecilia Rodriguez, el Nacional

$0.35

Peale, Norman Vincent, Grijalbo

$6.25

N. Goran - C. Johan, Deusto

$1.00

Antonio Lobo, Debate

$1.05

El Nacional, el Nacional

$5.00

$1.00

Antonio Lopez Ortega, Mondadori

$8.91

Guy Isaac, Ariel

$7.00

$0.14

Haim Medelson-j. Ziegler, Deusto

$2.00

A. J. Hartley, Plaza Janes

$1.00