*Sarada Ranganathan Endowment for Library Science, Bangalore.
Briefly describes some tools for information organization - a machine-readable thesaurus, index to Colon Classification, Edition 7, and an aid to learning/teaching Postulational Approach to classifying subjects. For each document in the practice exercise class numbers by CC ed. 6 and 7, DDC 20, and UDC 4, are given.
