1. Genecology and gene resource management strategies for conifer cold hardiness;Aitken,2001
2. Experimental Studies on the Nature of Species. III;Clausen,1948
3. Range shifts and adaptive responses to climate change;Davis;Science,2001
4. Geographic Variation, Speciation, and Clines;Endler,2001
5. Genes and adaptation: a pocket guide to the theory;Kirkpatrick,1996