HARDING, H. (1970). Production Management H.a. Harding. Mac Donald and Evans.
Lua i Stíl Chicago (17ú heag.)HARDING, H.A. Production Management H.a. Harding. Mac Donald and Evans, 1970.
Lua MLA (8ú heag.)HARDING, H.A. Production Management H.a. Harding. Mac Donald and Evans, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.