APA-ийн эшлэл(7 дахь хэвлэлт)

BROCK SUSAN. (2004). BETTER BUSINESS WRITING: TECHNIQUES FOR IMPROVING. VIVA BOOKS PVT.LTD.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

BROCK SUSAN. BETTER BUSINESS WRITING: TECHNIQUES FOR IMPROVING. NEW DELHI: VIVA BOOKS PVT.LTD, 2004.

MLA -ийн эшлэл (9 дэх хэвлэлт)

BROCK SUSAN. BETTER BUSINESS WRITING: TECHNIQUES FOR IMPROVING. VIVA BOOKS PVT.LTD, 2004.