Lee, R.L., Jr. A Critical Study of Cotton Manufacturing Processes. Tex. Rsch., IV, 5, 235-60 (1934).
2.
Turner, A. James.The Effect of Using Unbalanced Drafts Instead of Balanced Drafts in the Spinning Preparation for Spinning Tests. Indian Central Cotton Committee Technological Laboratory. Bombay. Appendix, P. 20, Bulletin No. 15 (1928).
3.
Laetsch, Paul.Ueber die Fehler in Lunten und Vorgarn und ihre Ermittlung (Concerning the Faults in Sliver and Roving and Their Determination) . Translation by H. P. Gurney. Textilber., 8 (1927).
4.
Lipowsky, Ing. E.Gleichmassigkeit von Baumwollkarden und Streckbändern und deren Prufung. (The Uniformity of Cotton Card and Drawing Sliver and Their Testing.) Translation by H. P. Gurney. Textilber., 14, 332-35 (1933).
5.
Balls, W.Lawrence. Studies of Quality in Cotton, P. 127.
6.
Ibid., P. 126.
7.
Barker and Stanburg.A Photoelectric Method of Measuring the Levelness of Yarn. J. T. I., XIX, 12, T410.
8.
Ezekiel, M.Methods of Correlation Analysis, P. 23-4.