TY - BOOK AU - Gray,G W AU - Gray , G . W , ed AU - Winsor , P . A , ed TI - Liquid crystals and plastic crystals: Physico - chemical properties and methods of investigation T2 - Elis horwood series in physical chemistry U1 - 548.56 PY - 1974/// CY - New York PB - Ellis horwood Ltd KW - Liquid crystals KW - Plastic crystals ER -