BANGS DAVID H. (1989). BUSINESS PLANNING GUIDE: CREATING A PLAN FOR SUCCESS IN YOUR OWN BUSINESS (5th.). UPSTART PUBLISHING.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)BANGS DAVID H. BUSINESS PLANNING GUIDE: CREATING A PLAN FOR SUCCESS IN YOUR OWN BUSINESS. 5th. DOVER: UPSTART PUBLISHING, 1989.
MLA -ийн эшлэл (9 дэх хэвлэлт)BANGS DAVID H. BUSINESS PLANNING GUIDE: CREATING A PLAN FOR SUCCESS IN YOUR OWN BUSINESS. 5th. UPSTART PUBLISHING, 1989.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.