Cita APA (7a ed.)

Whitten, C. A. (1947). Air-line distances between cities in the United States. United States Government Printing Office.

Cita Chicago Style (17a ed.)

Whitten, C. A. Air-line Distances Between Cities in the United States. Washington: United States Government Printing Office, 1947.

Cita MLA (9a ed.)

Whitten, C. A. Air-line Distances Between Cities in the United States. United States Government Printing Office, 1947.