Wasson, E. (2004). Trees & shrubs: Illustrated A-Z of over 8500 plants. Wellfleet.
Chicago Style (17. basım) AtıfWasson, Ernie. Trees & Shrubs: Illustrated A-Z of over 8500 Plants. New Jersey: Wellfleet, 2004.
MLA (9th ed.) AtıfWasson, Ernie. Trees & Shrubs: Illustrated A-Z of over 8500 Plants. Wellfleet, 2004.
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