(1974). Field testing and instrumentation of rock: A symposium presented at the seventy-sixth annual meeting, American Society for Testing and Materials, Philadelphia, Pa., 24-29 June 1973. Philadelphia, PA.: American Society for Testing and Materials.
Παραπομπή Chicago StyleField Testing and Instrumentation of Rock: A Symposium Presented At the Seventy-sixth Annual Meeting, American Society for Testing and Materials, Philadelphia, Pa., 24-29 June 1973. Philadelphia, PA.: American Society for Testing and Materials, 1974.
Παραπομπή MLAField Testing and Instrumentation of Rock: A Symposium Presented At the Seventy-sixth Annual Meeting, American Society for Testing and Materials, Philadelphia, Pa., 24-29 June 1973. Philadelphia, PA.: American Society for Testing and Materials, 1974.