Gilson, J. (1989). World agricultural changes: Implications for Canada. Howe.
Lua i Stíl Chicago (17ú heag.)Gilson, J.C. World Agricultural Changes: Implications for Canada. Toronto: Howe, 1989.
Lua MLA (9ú heag.)Gilson, J.C. World Agricultural Changes: Implications for Canada. Howe, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.