003420000a22001210004500060000800000082002200008100001700030245004800047260003900095260000900134300000800143650006900151  a100  a630.241 372 8 SMA  aSmall, James  aPH and plants: an introduction to beginners  aLondon, Bailliere, Tindall and Co.  c1946  a200  aPlants- PH Value / Buffers / Plant pathology- PH Value / Soil PH