J. Vargas P. - P. Garcia, Romor
$7.13
Fraga Garcia, Trillas
$19.50
Marco A. Romero Rivero, Vadell
$7.00
D. Eiteman - A. Stonehill, Prentice Hall
$35.00
Gaceta Nº 38.659, la Piedra
$1.09
P. Samuelson - W Nordhaus, Mcgraw Hill
$57.00
Gaceta No. 39.027, Njr
$1.00
Gaceta Nº 38.654, Njr
$1.00