@book{Le_Gros_Clark1955-cc,
  author = "W. E. L. G. Clark and Clark and B. G. Campbell",
  title = "The Fossil Evidence for Human Evolution: An Introduction to the Study of Paleoanthropology",
  year = 1955,
  publisher = "University of Chicago Press",
  url = "https://play.google.com/store/books/details?id=-pU5AAAAMAAJ",
  isbn = "9780226109381"
}