TY - BOOK AU - Harding, Geoffrey, ed. TI - Substance Detection Systems T2 - Proceedings of SPIE; V. 2092 SN - 9780819413659 (Print) PY - 1994/// CY - Washington, USA PB - SPIE UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/2092 ER -