APA
Nicholas D J D Ed, Symposium on trace elements in soil-plant-animal systems (1974 : Glen Oxmond) & Egan Adrian R Ed. (1975). Proceedings on trace elements in soil-plant-animal systems. New York: Academic Press.
Chicago
Nicholas D J D Ed, Symposium on trace elements in soil-plant-animal systems (1974 : Glen Oxmond) and Egan Adrian R Ed. 1975. Proceedings on trace elements in soil-plant-animal systems. New York: Academic Press.
Harvard
Nicholas D J D Ed, Symposium on trace elements in soil-plant-animal systems (1974 : Glen Oxmond) and Egan Adrian R Ed. (1975). Proceedings on trace elements in soil-plant-animal systems. New York: Academic Press.
MLA
Nicholas D J D Ed, Symposium on trace elements in soil-plant-animal systems (1974 : Glen Oxmond) and Egan Adrian R Ed. Proceedings on trace elements in soil-plant-animal systems. New York: Academic Press. 1975.
