Control charts as a tool in data quality improvement.

Mode of access: Internet.

Maximum likelihood as an operational tool in socio-economic modeling: as outlined in a recent thesis of D. W. Peterson. Final report.

Transportation Department, Office of Systems Engineering, Washington, D.C.

Soil analysis; a tool in crop production,

Mode of access: Internet.

The beta distribution in reliability and quality control /

Bibliography: leaves 41-43.