Investment principles and practices / Ralph E. Badger, Harold W. Torgerson [and] Harry G. Guthmann. Badger, Ralph Eastman, 1890- Torgerson, Harold W., joint author. Guthmann, Harry G. (Harry George), 1896-1981, joint author. Investments. Securities. 332.66 BAI Includes bibliographical references. Englewood Cliffs, N.J. : Prentice-Hall, 1969. 1969. 1969 Text xxiv, 748 p. : eng