00302nam a2200109Ia 450000500170000000800410001705000210005810000150007924500360009426000450013065000170017520251229182849.0251229s9999    xx            000 0 und d  aSB 318 .J35 1972  aJanick, J. 0aHorticultural sciencecJ Janick  aLondonb W .H. Freeman and companyc1963  aHorticulture