Jeffrey, C. (1982). An introduction to plant taxonomy (2nd ed.). Cambridge University Press.
Cita Chicago Style (17a ed.)Jeffrey, C. An Introduction to Plant Taxonomy. 2nd ed. Cambridge [etc.]: Cambridge University Press, 1982.
Cita MLA (9a ed.)Jeffrey, C. An Introduction to Plant Taxonomy. 2nd ed. Cambridge University Press, 1982.
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