E. Rodriguez - F. Suarez, Romor
$17.00
Gaceta Nº 39.610, la Piedra
$2.50
M. Nordin - V. Frankel, Lippincott
$80.00
Pamela Lynn, Lippincott
$50.00
Gaceta Nº 38.433, Njr
$1.26
Anil K. Lalwani, Macgraw Hill
$48.00
Tatiana B. de Maekelt, Ciencias Politicas
$6.50
Mcphee, Mcgrawhill
$72.60
Ronald Chacin Fuenmayor, Luz
$6.00