Motivation :
Petri, Herbert L.
Motivation : theory and research / Herbert L. Petri. - 2nd ed. - Belmont : Wadsworth Publishing, 1986. - xvi, 432 p. : 26 cm.
0534053823
Motivation(Psychology).
153.8 / PEM 1986
Motivation : theory and research / Herbert L. Petri. - 2nd ed. - Belmont : Wadsworth Publishing, 1986. - xvi, 432 p. : 26 cm.
0534053823
Motivation(Psychology).
153.8 / PEM 1986