TWEED STEPHEN C. (1990). STRATEGIC FOCUS: A GAMEPLAN FOR DEVELOPING COMPETITIVE.... FEEL PUB.INC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTWEED STEPHEN C. STRATEGIC FOCUS: A GAMEPLAN FOR DEVELOPING COMPETITIVE.... HOLLYWOOD FLORIDA: FEEL PUB.INC, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTWEED STEPHEN C. STRATEGIC FOCUS: A GAMEPLAN FOR DEVELOPING COMPETITIVE.... FEEL PUB.INC, 1990.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.