Shubb, R., & Crabb, E. (1969). Humbead's revised map of the world: With list of population. [Rick Shubb] : [Earl Crabb].
Chicago Style (17th ed.) CitationShubb, Rick, and Earl Crabb. Humbead's Revised Map of the World: With List of Population. [United States]: [Rick Shubb] : [Earl Crabb], 1969.
MLA (9th ed.) CitationShubb, Rick, and Earl Crabb. Humbead's Revised Map of the World: With List of Population. [Rick Shubb] : [Earl Crabb], 1969.
Warning: These citations may not always be 100% accurate.