2020 CFR > Title 37 > Chapter II – U.S. Copyright Office, Library of Congress

2009 CFR > Title 37 > Chapter II – Copyright Office, Library of Congress

2010 CFR > Title 37 > Chapter II – Copyright Office, Library Of Congress

2014 CFR > Title 37 > Chapter II – Copyright Office, Library of Congress

2015 CFR > Title 37 > Chapter II – U.S. Copyright Office, Library of Congress

2016 CFR > Title 37 > Chapter II – U.s. Copyright Office, Library of Congress

2019 CFR > Title 37 > Chapter II – U.S. Copyright Office, Library of Congress