00270nam a2200109Ia 450000500170000000800410001708200150005810000140007324500270008726000380011430000080015220260224040814.0260224s9999||||xx |||||||||||||| ||und||  a582.04 ESA  aEsau, K.  0aAnatomy of seed plants  aNew York: John Wiley & Sonsc2002  a550