APA-ийн эшлэл(7 дахь хэвлэлт)

WATKINS CHARLEY. (2002). MARKETING SALES AND CUSTOMER SERVICES. AITBS PUBLICATION.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

WATKINS CHARLEY. MARKETING SALES AND CUSTOMER SERVICES. NEW DELHI: AITBS PUBLICATION, 2002.

MLA -ийн эшлэл (9 дэх хэвлэлт)

WATKINS CHARLEY. MARKETING SALES AND CUSTOMER SERVICES. AITBS PUBLICATION, 2002.