$6.00

Bellanira J. Barcenas V., Saber

$15.60

$6.00

Z. Martin - A. Hernandez, Saber

$16.80

$25.81

Carmen Navarro, Santillana

$28.84

C. de Rissi - O. Salazar, Cobo

$12.00

Mercedes Hernandez P., Biosfera

$23.76

Marcela Hinojosa de Coria, Trillas

$9.11

Maira Molina Lucero, Trillas

$35.52

Francisco Avila, Saber

$6.00

Sergio Medina, Noriega

$24.02

I. Brito - M. Rull, Santillana

$25.81

Henry Cedeño, Cobo

$9.60

Juan J. Gutierrez, Girasol

$30.06