Alberto Arias Amaro, Romor
$7.00
Gabriel A. Cabrera Ibarra, Vadell Hermanos
$7.00
Bid, Alfaomega
$23.91
Juan R. Cuadrado Roura, Mcgraw Hill
$30.00
Nelly Sanchez Pantaleon, Livrosca
$11.99
J. Badillo-r. Rodriguez, Limusa Noriega Editores
$28.00
H. Gutierrez-r.de la Vara, Mcgraw Hill
$50.00