Beard, Charles A.
An economic interpretation of the constitution of the United Stated
Free Press, 1986
 Buku Teks
Beard, Charles A.
An Economic interpretation of the constitution of the United States
Macmillan, 1957
 Buku Teks
Corwin, Edward S.
The constitution of the United States of America analysis and interpretation
U.S. Government Printing Office, 1953
 Buku Teks
Corwin, Edward S.
The Constitution of the United States of America analysis and interpretation
Government Printing Office, 1953
 Buku Teks
Corwin, Edward S.
The Constitution of the United States of America analysis and interpretation
Government Printing Office, 1953
 Buku Teks