00273nam a22001097a 4500003000400000008004100004082001800045100002100063245005100084260002000135300000800155OSt240307b        |||||||| |||| 00| 0 eng d  a574.873bG95U  aGunning B. E. S.  aPlant cell biology an ultrastructural approach  aE Arnold c1975  a280