Sitwell, O. F. G. (1993). Four centuries of special geography: An annotated guide to books that purport to describe all the countries in the world published in English before 1888, with a critical introduction. UBC Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSitwell, O. F. G. Four Centuries of Special Geography: An Annotated Guide to Books That Purport to Describe All the Countries in the World Published in English Before 1888, with a Critical Introduction. Vancouver: UBC Press, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSitwell, O. F. G. Four Centuries of Special Geography: An Annotated Guide to Books That Purport to Describe All the Countries in the World Published in English Before 1888, with a Critical Introduction. UBC Press, 1993.
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