International Tropical Timber Organization. (1999). Annual review and assessment of the world timber situation. International Tropical Timber Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Tropical Timber Organization. Annual Review and Assessment of the World Timber Situation. [Yokohama]: International Tropical Timber Organization, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Tropical Timber Organization. Annual Review and Assessment of the World Timber Situation. International Tropical Timber Organization, 1999.
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