APA (7th ed.) Citation

Time-Life Books. (1988). The Divine campaigns: Timeframe AD 1100-1200. Time-Life Books.

Chicago Style (17th ed.) Citation

Time-Life Books. The Divine Campaigns: Timeframe AD 1100-1200. Alexandria, Va.: Time-Life Books, 1988.

MLA (9th ed.) Citation

Time-Life Books. The Divine Campaigns: Timeframe AD 1100-1200. Time-Life Books, 1988.

Warning: These citations may not always be 100% accurate.