The phrase 'practical theory' may seem to be a contradiction, but it is a term that Practical Beginning Theory has, since it's first edition in 1963, sought to

The phrase ‘practical theory’ may seem to be a contradiction, but it is a term that Practical Beginning Theory has, since it’s first edition in 1963, soug

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the publi