Cita APA (7th ed.)

Judkins, C. J. (1949). National association of the United States. U.S. Dept. of Commerce.

Cita Chicago (17th ed.)

Judkins, Calvert Jay. National Association of the United States. Washington: U.S. Dept. of Commerce, 1949.

Cita MLA (9th ed.)

Judkins, Calvert Jay. National Association of the United States. U.S. Dept. of Commerce, 1949.