Guilfoyle, M. J. (1937). Custom: : an historical synopsis and commentary . The Catholic university of America.
Cita Chicago Style (17a ed.)Guilfoyle, Merlin Joseph. Custom: : An Historical Synopsis and Commentary . Washington, D.C.,: The Catholic university of America, 1937.
Cita MLA (9a ed.)Guilfoyle, Merlin Joseph. Custom: : An Historical Synopsis and Commentary . The Catholic university of America, 1937.
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