TY - RPRT TI - Inorganic chemical investigation by x-ray fluorescence analysis: The Viking Mars Lander AU - P. Toulmin AU - A. K. Baird AU - B. C. Clark AU - Klaus Keil AU - H. J. Rose PY - 1973 DO - 10.1016/0019-1035(73)90048-1 UR - https://pubs.usgs.gov/publication/70010228 ID - 70010228 ER -