@misc{indiciae59973e55d9bf,
  title = {Chemical analyses and calculated modes of the Oliverian magma series, Mt. Washington Quadrangle, New Hampshire},
  author = {M.P. Billings and J.C. Rabbitt},
  year = {1947},
  doi = {10.1130/0016-7606(1947)58[573:caacmo]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70214504},
  note = {Source identifier: 70214504}
}