Gaya APA

1979), P, O, F, F, F, F, O, W, A, V, 6, A. (1981). Food, fuel, and fertilizer from organic wastes . Washington: National Academy Press.

Gaya MLA

1979), PANEL, On, Food,, Fuel, Fertilizer, From, Organic, Wastes., Airlie,, Virginia,, 6-8, August. "Food, fuel, and fertilizer from organic wastes". Washington: National Academy Press, 1981. Buku.