By Parker, Don H..
México :Editorial Pax-Mexico 1969 .
380 p. , Translation of : Schooling for individual excellence.

By Parker, Don H..
New York McGraw-Hill 1970 .
xv, 270 p. , 920819 007048483X

By Parker, Don H..
México :Editorial Pax-Mexico 1969 .
380 p. , Translation of : Schooling for individual excellence.