Gradwell, G. R. books & textbook
Insect Population Ecology: An Analytical Approach
Varley, G. C. Gradwell, G. R. Hassell, M. P.
University of California Press /1974-04-09 Paperback / 212 Pages
isbn-10: 0520026675 / isbn-13: 9780520026674
Dynamics of populations: Proceedings of the Advanced Study Institute on Dynamics of numbers in populations, Oosterbeek, the Netherlands, 7-18 September 1970
Pudoc /1971T Hardcover / 611 Pages
isbn-10: 9022003558 / isbn-13: 9789022003558
