APA
Colwell, R. K. (2009). EstimateS 8.2. 0.--Statistical estimation of species richness and shared species from samples. User’s Guide and Application. Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs.
Chicago/Turabian
Colwell, RK. “EstimateS 8.2. 0.--Statistical Estimation of Species Richness and Shared Species from Samples.” User’s Guide and Application. Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs (2009).
MLA
Colwell, R. K. “EstimateS 8.2. 0.--Statistical Estimation of Species Richness and Shared Species from Samples.” User’s Guide and Application. Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, 2009.