CRANDALL RICK. (1998). 1001 WAYS TO MARKET YOUR SERVICES. CONTEMPORARY BOOK.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCRANDALL RICK. 1001 WAYS TO MARKET YOUR SERVICES. U S A: CONTEMPORARY BOOK, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCRANDALL RICK. 1001 WAYS TO MARKET YOUR SERVICES. CONTEMPORARY BOOK, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.