Owen, R. D. (1848). Labor: Its history and prospects : an address delivered before the Young Men's Mercantile Library Association of Cincinnati on Tuesday, February 1, 1848. Cincinnati, Oh..
Lua i Stíl Chicago (17ú heag.)Owen, Robert Dale. Labor: Its History and Prospects : An Address Delivered Before the Young Men's Mercantile Library Association of Cincinnati on Tuesday, February 1, 1848. Cincinnati, Oh., 1848.
Lua MLA (8ú heag.)Owen, Robert Dale. Labor: Its History and Prospects : An Address Delivered Before the Young Men's Mercantile Library Association of Cincinnati on Tuesday, February 1, 1848. Cincinnati, Oh., 1848.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.