Patterson, Richard Sharpe; Dougall, Richardson (1976//1978). The Eagle and the Shield: A History of the Great Seal of the United States. Department and Foreign Service series ; 161 Department of State publication ; 8900. Washington : Office of the Historian, Bureau of Public Affairs, Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off. pp. 80-81. LCCN78602518. OCLC4268298.
Patterson, Richard Sharpe; Dougall, Richardson (1976//1978). The Eagle and the Shield: A History of the Great Seal of the United States. Department and Foreign Service series ; 161 Department of State publication ; 8900. Washington : Office of the Historian, Bureau of Public Affairs, Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off. pp. 80-81. LCCN78602518. OCLC4268298.
Patterson, Richard Sharpe; Dougall, Richardson (1976//1978). The Eagle and the Shield: A History of the Great Seal of the United States. Department and Foreign Service series ; 161 Department of State publication ; 8900. Washington : Office of the Historian, Bureau of Public Affairs, Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off. pp. 80-81. LCCN78602518. OCLC4268298.