Verschraege, L. Cotton fibre impurities : neps, motes and seed coat fragments - Oxon, Uk : CAB, 1989 - 55 p. ; ilus. ; gráfs - Cotton production research ; 1 . - Cotton production research ; 1 . D50-138 LCCN: 3568 Subjects--Topical Terms: Fibra de algodón.