National Science Foundation (2006). "Time to Degree of U.S. Research Doctorate Recipients". InfoBrief, Science Resource Statistics. NSF. 06–312: 7. Archived from the original(PDF) on 8 March 2016. Under "Data notes" this article mentions that the J.D. is a professional doctorate.
San Diego County Bar Association (1969). "Ethics Opinion 1969-5". Archived from the original on 11 April 2003. Retrieved 26 May 2008.. Under "other references" differences between academic and professional doctorates, and contains a statement that the J.D. is a professional doctorate
National Science Foundation (2006). "Time to Degree of U.S. Research Doctorate Recipients". InfoBrief, Science Resource Statistics. NSF. 06–312: 7. Archived from the original(PDF) on 8 March 2016. Under "Data notes" this article mentions that the J.D. is a professional doctorate.
San Diego County Bar Association (1969). "Ethics Opinion 1969-5". Archived from the original on 11 April 2003. Retrieved 26 May 2008.. Under "other references" differences between academic and professional doctorates, and contains a statement that the J.D. is a professional doctorate
"Archived copy"(PDF). Archived from the original on 31 March 2010. Retrieved 31 July 2010.{{cite web}}: CS1 maint: archived copy as title (link) CS1 maint: bot: original URL status unknown (link)