Long Ashton International Symposium : Long Ashton Research Station, University of Bristol, Glen, D. M., Greaves, M. P., & Anderson, H. M. (1995). Ecology and integrated farming systems: Proceedings of the 13th Long Ashton International Symposium. John Wiley and Sons.
Παραπομπή σε μορφή Chicago (17η εκδ.)Long Ashton International Symposium : Long Ashton Research Station, University of Bristol, D. M. Glen, M. P. Greaves, και H. M. Anderson. Ecology and Integrated Farming Systems: Proceedings of the 13th Long Ashton International Symposium. Chichester: John Wiley and Sons, 1995.
Παραπομπή σε μορφή MLA (9th εκδ.)Long Ashton International Symposium : Long Ashton Research Station, University of Bristol, et al. Ecology and Integrated Farming Systems: Proceedings of the 13th Long Ashton International Symposium. John Wiley and Sons, 1995.