00530nam a22001691 4500 1/14417 990302s1950 enk 001 0 eng d 14897 DLC GR-PeUP 651.3 LE. Leffingwell, William H. Textbook of office management/ by William H. Leffingwell. New York: McGraw-Hill books, 1950. 649p.; 18cm. Includes index. Office management. INST UNIPILB MAIN 20040709 651.3 LE. 00130553 00130553 LOAN 0 1