Productive Thinking
Wertheimer,Max W
Productive Thinking - New York: Harper and brother, 1945. - xvi,302p.; 26cm
Education
D.A. Perera Collection
370.15 / WER
Productive Thinking - New York: Harper and brother, 1945. - xvi,302p.; 26cm
Education
D.A. Perera Collection
370.15 / WER