Jepson, T. (2012). National Geographic traveler: Italy (Fourth edition.). National Geographic Society.
芝加哥风格引文Jepson, Tim. National Geographic Traveler: Italy. Fourth edition. Washington, D.C: National Geographic Society, 2012.
MLA引文Jepson, Tim. National Geographic Traveler: Italy. Fourth edition. National Geographic Society, 2012.
警告：这些引文格式不一定是100％准确.