00320nam a22001097a 4500003000400000008004100004082001700045100002600062245006600088260004800154300000800202OSt231214b        |||||||| |||| 00| 0 eng d  a631.405bP86  aAmerican Org. Commtt.  aIst International Congress Soil Sc. (Proceed) June 13-22 1927  aAmerican Org. Commtt.bC.S.R.S., Pusac1928  a520