Skelton, R. A., & Humphreys, A. L. (1967). Decorative printed maps of the 15th to 18th centuries: A revised edition of Old decorative maps and charts, by A.L. Humphreys. Spring Books.
Chicago Style (17th ed.) CitationSkelton, R. A., and Arthur Lee Humphreys. Decorative Printed Maps of the 15th to 18th Centuries: A Revised Edition of Old Decorative Maps and Charts, by A.L. Humphreys. London: Spring Books, 1967.
MLA (9th ed.) CitationSkelton, R. A., and Arthur Lee Humphreys. Decorative Printed Maps of the 15th to 18th Centuries: A Revised Edition of Old Decorative Maps and Charts, by A.L. Humphreys. Spring Books, 1967.
Warning: These citations may not always be 100% accurate.
