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^Lavelle, Michael (2011). Sustainable Gardening. Marlborough: The Crowood Press. ISBN9781847972323.
^Ingram, David S.; Vince-Prue, Daphne; Gregory, Peter J. (2008). Science and the Garden: The scientific basis for horticultural practice. Chichester, Sussex, United Kingdom: Blackwell Publishing. ISBN9781405160636.
^Carroll, Steven B.; Salt, Steven B. (2004). Ecology for Gardeners. Portland, USA and Cambridge, UK: Timber Press. ISBN978-0881926118.