APA-ийн эшлэл(7 дахь хэвлэлт)

Vieira, W. (1997). The new sales manager: Challenges for twenty first century. Resoponse.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Vieira, Walter. The New Sales Manager: Challenges for Twenty First Century. New Delhi: Resoponse, 1997.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Vieira, Walter. The New Sales Manager: Challenges for Twenty First Century. Resoponse, 1997.