Tewari, P. (2018). Work study and ergonomics. R..K Offset press.
Lua i Stíl Chicago (17ú heag.)Tewari, P.C. Work Study and Ergonomics. R..K Offset press, 2018.
Lua MLA (9ú heag.)Tewari, P.C. Work Study and Ergonomics. R..K Offset press, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.