AUSTIN , B. (1989). MAKING EFFECTIVE USE OF EXECUTIVE TIME. STERLING PUB.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAUSTIN , BRUCE. MAKING EFFECTIVE USE OF EXECUTIVE TIME. STERLING PUB, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAUSTIN , BRUCE. MAKING EFFECTIVE USE OF EXECUTIVE TIME. STERLING PUB, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.