National Council of Applied Economic Research. (1972). Study of selected small industrial units.
Lua i Stíl Chicago (17ú heag.)National Council of Applied Economic Research. Study of Selected Small Industrial Units. New Delhi, 1972.
Lua MLA (8ú heag.)National Council of Applied Economic Research. Study of Selected Small Industrial Units. 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.