By Ries, Al.
Madrid : McGraw Hill, 1989 .
155 p. ; 23,5 cm. 9684220022

By Ohmae, Kenichi.
Madrid : McGraw Hill, 1989 .
202 p. : il. ; 23,5 cm. 8476156006

By Aaker, David A..
México : McGraw Hill, 1989 .
715 p. ; 24 cm. , notas a pié de página. 9684224869

By Bailey, Philip S..
Englewood Cliffs, NJ : Prentice Hall, 1989 0-205-11780-5

By Verschraege, L..
Wallingford, OX : C.A.B.International, 1989 0-85198-633-1