GARNER, W. The production of tobacco. Mc Graw-Hill Book Company.
Lua i Stíl Chicago (17ú heag.)GARNER, WIGTMAN. The Production of Tobacco. Mc Graw-Hill Book Company.
Lua MLA (8ú heag.)GARNER, WIGTMAN. The Production of Tobacco. Mc Graw-Hill Book Company.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.