Economic and environmental threats of alien plant, animal, and microbe invasions (2001)

D. Pimentel, S.McNair, J.Janecka, J.Wightman, C.Simmonds, C.O’Connell, E.Wong, L.Russel, J.Zern, T.Aquino, T.Tsomondo (2001). Economic and Environmental Threats of Alien Plant, Animal, and Microbe Invasions (PDF). Agriculture, Ecosystems & Environment. Volume 84, Issue 1, March 2001. pp. 1–20.