James C. Hunter, Empresa Activa

$12.00

Bladimir Aguilera, Pan House

$20.00

Dale Carnegie

$14.40

Antonio Perez Esclarin, San Pablo

$8.11

Ref. Holiday, Ryan, Conecta

$31.00

Andrew Matthews, Alamah

$7.20

Carmen Santiago, Csg

$4.38

Walter Riso, Planeta

$12.00

Stephen R. Covey, Paidos

$29.94

Augusto Cury, San Pablo

$9.67

Lourdes Cortes de Aragon, San Pablo

$8.40

Spencer Johnson, Empresa Activa

$21.60

Jurgen Klaric, Planeta

$26.40

Schwarz y Schweppe, Robin Book

$7.59

Louise L. Hay, Urano

$12.00