@misc{W2059245554,
  author = {Karl K. Turekian and K. H. Wedepohl},
  title = {Distribution of the Elements in Some Major Units of the Earth's Crust},
  year = {1961},
  howpublished = {Geological Society of America Bulletin},
  doi = {https://doi.org/10.1130/0016-7606(1961)72[175:doteis]2.0.co;2}
}