A. T. de Perez - E. Perez, Larense
$6.00
Gaceta Nº 39.112, Njr
$2.00
Y. Cengel - J. Cimbala, Mcgraw Hill
$36.00
Tolo M. Rimsky, Mcgraw Hill
$41.00
Edison E. Villalobos A., Edison E. Villalobos A.
$6.17
Maricarmen Paz Miranda, Atenea
$7.00
Fidias G. Arias, Episteme
$8.04
Gaceta No. 6.209, Ml, C.a.
$1.50