Não informado. Plant Immigrants. U.S. Department of Agriculture, Bureau of Plant Industry.
Style de citation Chicago (17e éd.)Não informado. Plant Immigrants. Washington: U.S. Department of Agriculture, Bureau of Plant Industry.
Style de citation MLA (8e éd.)Não informado. Plant Immigrants. U.S. Department of Agriculture, Bureau of Plant Industry.
Attention : ces citations peuvent ne pas être correctes à 100%.