Shoemaker, 1927. U.S. Dept. of Agriculture, 1927 - 32 pages Document reference Shoemaker, D. N., 1927. The Jerusalem artichoke as a crop plant. U.S. Dept. of Agriculture, 1927 - 32 pagesWeb http://books.google.fr/books?id=qsykitRdgiUCCitation key Shoemaker, 1927Datasheets Jerusalem artichoke (Helianthus tuberosus)
