Bio-dynamic Farming and Gardening Association. (1941). Bio-dynamics. Bio-Dynamic Farming and Gardening Association.
Chicago Style aipamenaBio-dynamic Farming and Gardening Association. Bio-dynamics. Phoenixville, Pa.: Bio-Dynamic Farming and Gardening Association, 1941.
MLA aipamenaBio-dynamic Farming and Gardening Association. Bio-dynamics. Bio-Dynamic Farming and Gardening Association, 1941.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.