Soil Conservation on the Downs Seminar, Toowoomba, Queensland, & Agricultural Technologists of Australasia. (1977). Soil Conservation on the Downs Seminar, Toowoomba D.D.I.A.E., 12 August 1977. Agricultural Technologists of Australasia.
芝加哥风格引文Soil Conservation on the Downs Seminar, Toowoomba, Queensland, 与 Agricultural Technologists of Australasia. Soil Conservation on the Downs Seminar, Toowoomba D.D.I.A.E., 12 August 1977. Toowoomba, Q.: Agricultural Technologists of Australasia, 1977.
MLA引文Soil Conservation on the Downs Seminar, Toowoomba, Queensland, 与 Agricultural Technologists of Australasia. Soil Conservation on the Downs Seminar, Toowoomba D.D.I.A.E., 12 August 1977. Agricultural Technologists of Australasia, 1977.