Rand McNally and Co. (1921). Rand McNally commercial atlas of foreign countries, a companion volume to the Commercial atlas of America: Containing maps--showing all recent boundary changes--of all the countries and principal political divisions of the world outside the United States of America, and detail maps of important islands, cities and ports, with an alphabetical index of more than 150,000 place names and names of physical features, with key to location on map ; latest available population figures ; chief ports of call ; many industrial, commercial and historical notations ; altitudes of principal mountains, lengths of chief rivers, and depths of principal lakes (2nd ed.). Chicago: Rand, McNally & Co..

Rand McNally and Co. Rand McNally Commercial Atlas of Foreign Countries, a Companion Volume to the Commercial Atlas of America: Containing Maps--showing All Recent Boundary Changes--of All the Countries and Principal Political Divisions of the World Outside the United States of America, and Detail Maps of Important Islands, Cities and Ports, With an Alphabetical Index of More Than 150,000 Place Names and Names of Physical Features, With Key to Location On Map ; Latest Available Population Figures ; Chief Ports of Call ; Many Industrial, Commercial and Historical Notations ; Altitudes of Principal Mountains, Lengths of Chief Rivers, and Depths of Principal Lakes. 2nd ed. Chicago: Rand, McNally & Co., 1921.

Rand McNally and Co. Rand McNally Commercial Atlas of Foreign Countries, a Companion Volume to the Commercial Atlas of America: Containing Maps--showing All Recent Boundary Changes--of All the Countries and Principal Political Divisions of the World Outside the United States of America, and Detail Maps of Important Islands, Cities and Ports, With an Alphabetical Index of More Than 150,000 Place Names and Names of Physical Features, With Key to Location On Map ; Latest Available Population Figures ; Chief Ports of Call ; Many Industrial, Commercial and Historical Notations ; Altitudes of Principal Mountains, Lengths of Chief Rivers, and Depths of Principal Lakes. 2nd ed. Chicago: Rand, McNally & Co., 1921.