Canada. Agriculture Canada. Food Advisory Division. (1982). Canada's food grades. Agriculture Canada.
Lua i Stíl Chicago (17ú heag.)Canada. Agriculture Canada. Food Advisory Division. Canada's Food Grades. Ottawa: Agriculture Canada, 1982.
Lua MLA (9ú heag.)Canada. Agriculture Canada. Food Advisory Division. Canada's Food Grades. Agriculture Canada, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.