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xviii, 313 p. 24 cm..

By Henrich, William L..
México McGraw-Hill Interamericana 2001 .
xv, 682 p. 9701032101

By González Román, Rosa M..
2003 .
x, 85 leaves 29 cm..

By Rivera Plaza, Maritza..
2005 .
xii, 59 leaves 29 cm..

Baltimore,MD: , Description based on contents viewed on Jan.18,2008;title from home page caption.

By Zayas Maldonado, Ilianis.
2019 .
1 disco de computadora (vi, 92 hojas) ; 4 3/4 in..