Adam J. Jackson, Sirio

$6.00

Antonio Perez Esclarin, San Pablo

$7.00

Ricardo Bulmez, Urania

$6.00

James C. Hunter, Empresa Activa

$10.00

Jose Farid H, Farid

$6.96

Dale Carnegie, Globals Ediciones

$20.00

Dale Carnegie

$12.00

Walter Riso, Norma

$8.50

Adam J.jackson, Sirio

$7.00

$7.00

Wayne W. Dyer, Grijalbo

$28.00

Louise L. Hay, Urano

$24.95

Andrew Matthews, Alamah

$6.00

Eckhart Tolle, Gaia

$8.00

Gisela B. Conde Huerta, Nancy Margarita

$8.50