TY - RPRT TI - Chemical composition of Precambrian, Paleozoic, Mesozoic and Tertiary rocks from east-central Alaska AU - Earl E. Brabb AU - Bette R. Hamachi PY - 1977 DO - 10.3133/ofr77631 UR - https://pubs.usgs.gov/publication/ofr77631 ID - ofr77631 ER -