Publex .
490 p. [sin ISBN]

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México : Pearson Educación .
xxviii, 595 p. 968-444-385-4

By Petrucci, Ralph.
Prentice Hall .
xix, 1067 p. 84-8322-043-1

By Wade, L. G.
Pearson Educación .
xxxvii, 1220 p. 84-205-4102-8

By Housecroft, Catherine E.
Madrid : Pearson Educación .
953, p 84-205-4842-2-978-84-205-4847-0