Hawes, A. (2011). What the Romans did for the world. Crabtree Pub. Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHawes, Alison. What the Romans Did for the World. St. Catharines, Ont. ; New York: Crabtree Pub. Co., 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHawes, Alison. What the Romans Did for the World. Crabtree Pub. Co., 2011.
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