Ethel Waters was a blues and jazz singer and dramatic actress whose singing, based in the blues tradition, featured her full-bodied voice and slow vibrato.
Ethel Waters. (2013). The Biography Channel website. Retrieved 06:00, May 25, 2013, from http://www.biography.com/people/ethel-waters-9524982.
Ethel Waters. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/ethel-waters-9524982 [Accessed 25 May 2013].
"Ethel Waters." 2013. The Biography Channel website. May 25 2013, 06:00 http://www.biography.com/people/ethel-waters-9524982.
"Ethel Waters," The Biography Channel website, 2013, http://www.biography.com/people/ethel-waters-9524982 [accessed May 25, 2013].
"Ethel Waters," The Biography Channel website, http://www.biography.com/people/ethel-waters-9524982 (accessed May 25, 2013).
Ethel Waters [Internet]. The Biography Channel website; 2013 [cited 2013 May 25] Available from: http://www.biography.com/people/ethel-waters-9524982.
Ethel Waters, http://www.biography.com/people/ethel-waters-9524982 (last visited May 25, 2013).
Ethel Waters. The Biography Channel website. 2013. Available at: http://www.biography.com/people/ethel-waters-9524982. Accessed May 25, 2013.