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This title describes how best to use statistical data to produce professional reports on library activities. The authors cover data gathering, sampling, graphical representation of data and summary statistics from data, and also include a section on trend analysis. A full bibliography and a subject index make this a key title for any information professional..

Separation processes are basic to the petroleum, chemical, petrochemical, energy, food products and minerals industries. Because of major changes in the economics governing plant design, environmental considerations, political and natural considerations of raw material, a larger effort in the future will be devoted to the selection, design and operation of separation processes. The subject matter of separation processes is very broad and therefore specialization has become the rule.