004250000a22001570004500060000800000082001200008100001900020100002100039100002100060245002000081260005500101260000900156300000800165490004200173650005200215  a100  a581 ADA  aAdams, Preston  aAllen, Garland E  aBaker, Jeffrey J  aStudy of botany  aMassachusetts, Addison - wesley publishing company  c1970  a556  aAddison-Wesley series in life science  aPlants/ plants - experiments/ plants - cytology