Lawrence, G. H. M. (1967). Taxonomy of Vascular Plants. Oxford & IBH.
Chicago-čujuhus (17. p.)Lawrence, George H. M. Taxonomy of Vascular Plants. New Delhi: Oxford & IBH, 1967.
MLA-čujuhus (9. p.)Lawrence, George H. M. Taxonomy of Vascular Plants. Oxford & IBH, 1967.
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