AUSTIN , B. (1989). MAKING EFFECTIVE USE OF EXECUTIVE TIME. STERLING PUB.
Chicago Style (17. basım) AtıfAUSTIN , BRUCE. MAKING EFFECTIVE USE OF EXECUTIVE TIME. STERLING PUB, 1989.
MLA (9th ed.) AtıfAUSTIN , BRUCE. MAKING EFFECTIVE USE OF EXECUTIVE TIME. STERLING PUB, 1989.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..