1. Infra-red spectra and structure of fibrous proteins
2. Booth, J.E., Moisture Relations and Testing, In: "Principles of Textile Testing," National Trade Press Ltd., London, 1961, p. 94.
3. Booth, J.E., Fabric Dimensions and Properties, The Shirley-Crease Recovery Test, In: "Principles of Textile Testing ," National Trade Press Ltd., London , 1961, p. 264.