TY - RPRT TI - A tabulation of K-Ar, Rb-Sr and Pb-alpha ages obtained for materials within the United States (including Alaska and Hawaii) during the years 1956 through 1964 AU - Richard F. Marvin PY - 1974 DO - 10.3133/ofr741068 UR - https://pubs.usgs.gov/publication/ofr741068 ID - ofr741068 ER -