Não informado. (1952). Canadian Journal of Agricultural Economics. Canadian Agricultural Economics and Farm Management Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Canadian Journal of Agricultural Economics. Winnipeg, Canada: Canadian Agricultural Economics and Farm Management Society, 1952.
Lua MLA (8ú heag.)Não informado. Canadian Journal of Agricultural Economics. Canadian Agricultural Economics and Farm Management Society, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.