LEFFINGWELL W H. (1982). TEXTBOOK OF OFFICE MANAGEMENT (3RD.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
芝加哥风格引文LEFFINGWELL W H. TEXTBOOK OF OFFICE MANAGEMENT. 3RD. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1982.
MLA引文LEFFINGWELL W H. TEXTBOOK OF OFFICE MANAGEMENT. 3RD. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1982.
警告：这些引文格式不一定是100％准确.