International Symposium on Agricultural Ecology and Environment : Padua, Paoletti, M., Stinner, B. R., & Lorenzoni, G. G. (1989). Agricultural ecology and environment: Proceedings of an International Symposium on Agricultural Ecology and Environment, Padova, Italy, 5-7 April 1988. Elsevier.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Symposium on Agricultural Ecology and Environment : Padua, Maurizio Paoletti, Benjamin R. Stinner, και G. G. Lorenzoni. Agricultural Ecology and Environment: Proceedings of an International Symposium on Agricultural Ecology and Environment, Padova, Italy, 5-7 April 1988. Amsterdam: Elsevier, 1989.
Παραπομπή σε μορφή MLA (9th εκδ.)International Symposium on Agricultural Ecology and Environment : Padua, et al. Agricultural Ecology and Environment: Proceedings of an International Symposium on Agricultural Ecology and Environment, Padova, Italy, 5-7 April 1988. Elsevier, 1989.