(1961). Modern Business: Transportation And Traffic Management / Arnold K. Henry. Alexander Hamilton Institute.
Lua i Stíl Chicago (17ú heag.)Modern Business: Transportation And Traffic Management / Arnold K. Henry. Alexander Hamilton Institute, 1961.
Lua MLA (8ú heag.)Modern Business: Transportation And Traffic Management / Arnold K. Henry. Alexander Hamilton Institute, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.