Baritone Robert Miller was best known as a favorite of the Metropolitan Opera for 30 years, also appearing in orchestras, films and musical comedies.
Robert Merrill. (2013). The Biography Channel website. Retrieved 12:58, May 26, 2013, from http://www.biography.com/people/robert-merrill-9406663.
Robert Merrill. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/robert-merrill-9406663 [Accessed 26 May 2013].
"Robert Merrill." 2013. The Biography Channel website. May 26 2013, 12:58 http://www.biography.com/people/robert-merrill-9406663.
"Robert Merrill," The Biography Channel website, 2013, http://www.biography.com/people/robert-merrill-9406663 [accessed May 26, 2013].
"Robert Merrill," The Biography Channel website, http://www.biography.com/people/robert-merrill-9406663 (accessed May 26, 2013).
Robert Merrill [Internet]. The Biography Channel website; 2013 [cited 2013 May 26] Available from: http://www.biography.com/people/robert-merrill-9406663.
Robert Merrill, http://www.biography.com/people/robert-merrill-9406663 (last visited May 26, 2013).
Robert Merrill. The Biography Channel website. 2013. Available at: http://www.biography.com/people/robert-merrill-9406663. Accessed May 26, 2013.