By Centers, Richard..
Springfield, Ill. Thomas 1975 .
xii, 326 p. 24 cm..
039803169X

By Affemann, Rudolf.
Barcelona Editorial Herder 1983 .
144 p. , Translation of: Woran können wir uns halten? 22 cm..
8425412668

By Vargas Rivera, Emma.
Santurce, Puerto Rico Jay-Ce Printing 1987 .
308 p. 21 cm..

By Scott, Michael D..
Madrid Nancea 1985 .
271 p. , Translation of : Interpersonal communication : a guestion of needs.

By Caratozzolo, Domingo..
Rosario, Santa Fe, Argentina Homo Sapiens 2002 .
136 p. 20cm..
9508083549