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.
sdcba.org
San Diego County Bar Association (1969). "Ethics Opinion 1969-5". Archived from the original on 11 April 2003. Retrieved 2008-05-26.. 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 2008-05-26.. Under "other references" differences between academic and professional doctorates, and contains a statement that the J.D. is a professional doctorate