By Bassis, Michael S..
México McGraw-Hill 1996 .
xxii, 697 p. 9701008111

By Gelles, Richard James,.
México, D.F. McGraw-Hill 2000 .
xxviii, 736 p. , Translation of: Sociology: an introduction (6th ed.), 1999. 25 cm. + 1 guide (v, 31 p. ; 25 cm.).
970-10-2826-0