(1988). Nitrogen efficiency in agricultural soils: A Seminar on Nitrogen Efficiency in Agricultural Soils and the Efficient Use of Fertilizer Nitrogen, held in Edinburgh, 16 - 18 Sept. 1987. Elsevier Applied Science.
Chicago-Zitierstil (17. Ausg.)Nitrogen Efficiency in Agricultural Soils: A Seminar on Nitrogen Efficiency in Agricultural Soils and the Efficient Use of Fertilizer Nitrogen, Held in Edinburgh, 16 - 18 Sept. 1987. London u.a: Elsevier Applied Science, 1988.
MLA-Zitierstil (9. Ausg.)Nitrogen Efficiency in Agricultural Soils: A Seminar on Nitrogen Efficiency in Agricultural Soils and the Efficient Use of Fertilizer Nitrogen, Held in Edinburgh, 16 - 18 Sept. 1987. Elsevier Applied Science, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.