SpringerLink (Online service), Bull, A. T., & Hawksworth, D. L. (2007). Plant conservation and biodiversity. Springer Science+Business Media B.V.
Čikaški stil citiranja (17. izdanje)SpringerLink (Online service), Alan T. Bull, i David L. Hawksworth. Plant Conservation and Biodiversity. Dordrecht: Springer Science+Business Media B.V, 2007.
MLA način citiranja (8. izdanje)SpringerLink (Online service), et al. Plant Conservation and Biodiversity. Springer Science+Business Media B.V, 2007.
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