Center for Research on Textile Protection and Comfort - 1977 LYONS, D. W., & BARKER, R. L. (1977). COMPARATIVE ANALYSIS OF TRASH CONTAMINATION IN COTTON BY OPTICAL SCANNING. JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME, 99(1), 46–50. https://doi.org/10.1115/1.3439163 BARKER, R. L., & LYONS, D. W. (1977). INSTRUMENTED ANALYSIS OF INFLUENCE OF NON-LINT TRASH AND LINT COLOR ON GRADING OF COTTON. TEXTILE RESEARCH JOURNAL, 47(4), 289–294. https://doi.org/10.1177/004051757704700409