Greenhalgh, P. (1979). The market for culinary herbs. Tropical Products Institute.
Lua i Stíl Chicago (17ú heag.)Greenhalgh, Peter. The Market for Culinary Herbs. London: Tropical Products Institute, 1979.
Lua MLA (9ú heag.)Greenhalgh, Peter. The Market for Culinary Herbs. Tropical Products Institute, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.