APA-ийн эшлэл(7 дахь хэвлэлт)

SCOTT DRU. (1991). CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CRISP PUBLICATION.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

SCOTT DRU. CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CALIFORNIA: CRISP PUBLICATION, 1991.

MLA -ийн эшлэл (9 дэх хэвлэлт)

SCOTT DRU. CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CRISP PUBLICATION, 1991.