Öpik, H. (2005). The physiology of flowering plants. Cambridge, UK: Cambridge University Press.
Trích dẫn kiểu ChicagoÖpik, Helgi. The Physiology of Flowering Plants. Cambridge, UK: Cambridge University Press, 2005.
MLA CitationÖpik, Helgi. The Physiology of Flowering Plants. Cambridge, UK: Cambridge University Press, 2005.
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