APA-ийн эшлэл(7 дахь хэвлэлт)

LEFFINGWELL W H. (1982). TEXTBOOK OF OFFICE MANAGEMENT (3RD.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

LEFFINGWELL W H. TEXTBOOK OF OFFICE MANAGEMENT. 3RD. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1982.

MLA -ийн эшлэл (9 дэх хэвлэлт)

LEFFINGWELL W H. TEXTBOOK OF OFFICE MANAGEMENT. 3RD. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1982.