Scagel, R. (1984). Plants, an evolutionary survey. Wadsworth Pub. Co..
Chicago-čujuhus (17. p.)Scagel, R.F. Plants, an Evolutionary Survey. Belmont, Calif.: Wadsworth Pub. Co., 1984.
MLA-čujuhus (9. p.)Scagel, R.F. Plants, an Evolutionary Survey. Wadsworth Pub. Co., 1984.
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