APA (7 वां संस्करण) प्रशस्ति पत्र
Levine, S. (2002). The book of agreement: 10 essential elements for getting the results you want. Berrett-Koehler.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Levine, Stewart. The Book of Agreement: 10 Essential Elements for Getting the Results You Want. San Francisco: Berrett-Koehler, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Levine, Stewart. The Book of Agreement: 10 Essential Elements for Getting the Results You Want. Berrett-Koehler, 2002.
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