Hewison, G., Van Dyke, J. M., & Zaelke, D. (1993). Freedom for the seas in the 21st century: Ocean governance and environmental harmony. Island Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHewison, Grant, Jon M. Van Dyke, और Durwood Zaelke. Freedom for the Seas in the 21st Century: Ocean Governance and Environmental Harmony. Washington, D.C: Island Press, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHewison, Grant, et al. Freedom for the Seas in the 21st Century: Ocean Governance and Environmental Harmony. Island Press, 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.