TY - BOOK AU - Rao D V K N AU - Karthikakuttyamma M AU - Punnoose K I TI - Interpretation of survey data of soils under rubber. Use of multivariate statistics PY - 2007/// PB - Journal of the Indian Society of Soil Science KW - Cluster analysis KW - Factor analysis KW - Multivariate statistics KW - Soil survey data ER -