CROCKETT, J. U. (1979). Lawns And Ground Covers James Underwood Crockett. Time-Life Books.
Čikaški stil citiranja (17. izdanje)CROCKETT, James Underwood. Lawns And Ground Covers James Underwood Crockett. Time-Life Books, 1979.
MLA način citiranja (8. izdanje)CROCKETT, James Underwood. Lawns And Ground Covers James Underwood Crockett. Time-Life Books, 1979.
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