Mehrotra, L. P. (1971). Stuttering: Clinical, psychological, sociological, and educational study ([1st ed.].). United Publishers.
Lua i Stíl Chicago (17ú heag.)Mehrotra, L. P. Stuttering: Clinical, Psychological, Sociological, and Educational Study. [1st ed.]. Allahabad: United Publishers, 1971.
Lua MLA (8ú heag.)Mehrotra, L. P. Stuttering: Clinical, Psychological, Sociological, and Educational Study. [1st ed.]. United Publishers, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.