APA (7th ed.) Citation
Conference on the National Archives and Research in Historical Geography ( Washington, EUA), & Ehrenberg, R. E. Pattern and Process: V. 9 : Research in Historical Geography. Howard University Press.
Chicago Style (17th ed.) Citation
Conference on the National Archives and Research in Historical Geography ( Washington, EUA), and Ralph E. Ehrenberg. Pattern and Process: V. 9 : Research in Historical Geography. Washington, EUA: Howard University Press.
MLA (9th ed.) Citation
Conference on the National Archives and Research in Historical Geography ( Washington, EUA), and Ralph E. Ehrenberg. Pattern and Process: V. 9 : Research in Historical Geography. Howard University Press.
Warning: These citations may not always be 100% accurate.