Australian Society of Soil Science. Queensland Branch & Fergus, I. F. (1988). Understanding soils and soil data: Invited lectures forrefresher training course in soil science, Brisbane, Queensland, 5-9 December, 1988. Australian Society of Soil Science Inc., (Queensland Branch).
Chicago-viite (17. p.)Australian Society of Soil Science. Queensland Branch ja I. F. Fergus. Understanding Soils and Soil Data: Invited Lectures Forrefresher Training Course in Soil Science, Brisbane, Queensland, 5-9 December, 1988. Brisbane: Australian Society of Soil Science Inc., (Queensland Branch), 1988.
MLA-viite (9. p.)Australian Society of Soil Science. Queensland Branch ja I. F. Fergus. Understanding Soils and Soil Data: Invited Lectures Forrefresher Training Course in Soil Science, Brisbane, Queensland, 5-9 December, 1988. Australian Society of Soil Science Inc., (Queensland Branch), 1988.