Boulding, Kenneth E. 1910-1993. The meaning of the twentieth century; the great transition [by] Kenneth E. Boulding. - [1st ed.] - New York, Harper & Row [1964] - xvi, 199 p. 20 cm. LCCN: 64020540 LC Class. No.: CB 425 .B668 / .B668 Dewey Class. No.: 301.24