Gregg, John Robert. ...[et al.]. Applied secretarial practice / John Robert Gregg. ...[et al.]. - 4th ed. - New York : Gregg, c 1957. - xii, 499 p. : ill. ; 24 cm. Includes index. 315 315 Subjects--Topical Terms: Office services. Dewey Class. No.: 651.02 / G862a