Given, D. R. (1994). Principles and practice of plant conservation. Timber Press.
Citazione stile Chigago Style (17a edizione)Given, David R. Principles and Practice of Plant Conservation. Portland: Timber Press, 1994.
Citatione MLA (9a ed.)Given, David R. Principles and Practice of Plant Conservation. Timber Press, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.