APA
Greenwood D. J. e., Nye P. H. e. & Walker A. e. (1990). Quantitative theory in soil productivity & environmental pollution. London: The Royal Society.
Chicago
Greenwood D J ed, Nye P H ed and Walker A ed. 1990. Quantitative theory in soil productivity & environmental pollution. London: The Royal Society.
Harvard
Greenwood D. J. e., Nye P. H. e. and Walker A. e. (1990). Quantitative theory in soil productivity & environmental pollution. London: The Royal Society.
MLA
Greenwood D J ed, Nye P H ed and Walker A ed. Quantitative theory in soil productivity & environmental pollution. London: The Royal Society. 1990.