HARVARD BUSINESS SCHOOL PRESS. (1991). MANAGERS AS LEADERS. HARVARD BUSINESS REVIEW SCHOOL.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)HARVARD BUSINESS SCHOOL PRESS. MANAGERS AS LEADERS. BOSTAN: HARVARD BUSINESS REVIEW SCHOOL, 1991.
MLA -ийн эшлэл (9 дэх хэвлэлт)HARVARD BUSINESS SCHOOL PRESS. MANAGERS AS LEADERS. HARVARD BUSINESS REVIEW SCHOOL, 1991.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.