APA
Helfrich W Ed, Conference on liquid crystals of one-and two-dimensional order and their applications (1980 : Fed Rep & Heppke G Ed. (1980). Proceeding on Liquid crystals of one-and two-dimensional order. Berlin: Springer-Verlag.
Chicago
Helfrich W Ed, Conference on liquid crystals of one-and two-dimensional order and their applications (1980 : Fed Rep and Heppke G Ed. 1980. Proceeding on Liquid crystals of one-and two-dimensional order. Berlin: Springer-Verlag.
Harvard
Helfrich W Ed, Conference on liquid crystals of one-and two-dimensional order and their applications (1980 : Fed Rep and Heppke G Ed. (1980). Proceeding on Liquid crystals of one-and two-dimensional order. Berlin: Springer-Verlag.
MLA
Helfrich W Ed, Conference on liquid crystals of one-and two-dimensional order and their applications (1980 : Fed Rep and Heppke G Ed. Proceeding on Liquid crystals of one-and two-dimensional order. Berlin: Springer-Verlag. 1980.