00440nam a22001457a 4500003000400000008004100004082001600045100001600061245014300077260001600220300000800236650002200244942001100266999001700277OSt260601b        |||||||| |||| 00| 0 eng d  a631.4bT30S  aS.K. Thakur  aStudies on Influence of Permanent and Intermittent Water-Logging on the Nature of Clay Minerals Developed on Some Important Soils of Bihar  aRPCAUc1983  a141  aMSc. Soil Science  2ddccT  c51111d51111