Murray-Aaron, E. (1909). The heart of our country: A graphic presentation from official sources of the history, development and methods of the United States federal government in all its departments, bureaus, divisions, offices and special commissions throughout the legislative, executive and judicial branches of our national administration. Chicago: George F. Cram.

Murray-Aaron, Eugene. The Heart of Our Country: A Graphic Presentation From Official Sources of the History, Development and Methods of the United States Federal Government in All Its Departments, Bureaus, Divisions, Offices and Special Commissions Throughout the Legislative, Executive and Judicial Branches of Our National Administration. Chicago: George F. Cram, 1909.

Murray-Aaron, Eugene. The Heart of Our Country: A Graphic Presentation From Official Sources of the History, Development and Methods of the United States Federal Government in All Its Departments, Bureaus, Divisions, Offices and Special Commissions Throughout the Legislative, Executive and Judicial Branches of Our National Administration. Chicago: George F. Cram, 1909.