APA-čujuhus (7. p.)
Richards, D. A. J. (1989). Foundations of American constitutionalism. Oxford University Press.
Chicago-čujuhus (17. p.)
Richards, David A. J. Foundations of American Constitutionalism. New York: Oxford University Press, 1989.
MLA-čujuhus (9. p.)
Richards, David A. J. Foundations of American Constitutionalism. Oxford University Press, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.