Headquarters telephone directory.
APA Citation
United States. National Aeronautics and Space Administration. Headquarters telephone directory. Washington: National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].
MLA Citation
United States. National Aeronautics and Space Administration. Headquarters Telephone Directory. Washington: National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.],
Warning: These citations may not always be complete (especially for serials).