Ecological implications of contemporary agriculture : proceedings of the 4th European Ecology Symposium 7-12 September 1986, Wageningen /
edited by H. Eijsackers and A. Quispel.
- Copenhagen, Denmark : Munksgaard International Booksellers and Publishers, c1988.
- 211 pages : illustrations ; 28 cm.
- Ecological bulletins ; no. 39 .