TY - BOOK AU - Powers, Michael H. CN - I 19.76: CY - [Denver, Colo.] : DA - 1992. ID - 198931 KW - Ground penetrating radar KW - Radar in earth sciences N1 - 92-532-B is executable program on 1 disk. N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 93-0544-M. N1 - "September 1992." PB - U.S. Geological Survey : PB - [Books and Open-File Report Section, distributor], PP - [Denver, Colo.] : PY - 1992. T1 - GPRMODELone-dimensional pull waveform forward modeling of ground penetrating radar data / TI - GPRMODELone-dimensional pull waveform forward modeling of ground penetrating radar data / VL - 92-532 [i.e. 92-532-A] ER -