1. The Distribution and Abundance of Animals;Andrewartha,1954
2. Regression Diagnostics: Identifying Influential Data and Sources of Collinearity;Belsley,1980
3. Quantitative palaeoenvironmental reconstructions;Birks,1995
4. Numerical tools in palaeolimnology-progress, potentialities, and problems;Birks;J. Palaeolimnol.,1998
5. Ecological Subregions: Sections and Subsections for the Conterminous United States [1:3,500,000] [CD-ROM];Cleland,2007