Não informado. (1988). Australian journal of soil and water conservation. Soil and Water Conservation Association of Australia.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Australian Journal of Soil and Water Conservation. Alexandria, Va: Soil and Water Conservation Association of Australia, 1988.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Australian Journal of Soil and Water Conservation. Soil and Water Conservation Association of Australia, 1988.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.