3 treff

Methods of study in quantitative soil ecology : population, production and energy flow
edited by J. Phillipson
Bok Engelsk 1971
Methods of study in soil ecology : proceedings of the Paris symposium organized by Unesco and the International Biological Programme
edited by J. Phillipson = Méthodes d'étud...
Bok Engelsk 1970
Ecological energetics
by John Phillipson
Bok Engelsk 1966