British Ecological Society. Symposium, Grubb, P. J., & Whittaker, J. B. (1989). Toward a more exact ecology: The second jubilee symposium to celebrate the 75th anniversary of the British Ecological Society, St. Catherine's College, Oxford, 13-15 September 1988, published as the 30th Symposium of the Society. Blackwell Scientific.
Παραπομπή σε μορφή Chicago (17η εκδ.)British Ecological Society. Symposium, Peter J. Grubb, και John B. Whittaker. Toward a More Exact Ecology: The Second Jubilee Symposium to Celebrate the 75th Anniversary of the British Ecological Society, St. Catherine's College, Oxford, 13-15 September 1988, Published as the 30th Symposium of the Society. Oxford: Blackwell Scientific, 1989.
Παραπομπή σε μορφή MLA (9th εκδ.)British Ecological Society. Symposium, et al. Toward a More Exact Ecology: The Second Jubilee Symposium to Celebrate the 75th Anniversary of the British Ecological Society, St. Catherine's College, Oxford, 13-15 September 1988, Published as the 30th Symposium of the Society. Blackwell Scientific, 1989.