@book{37638,
  author = {Bernhard Witkop},
  title = {Percy Lavon Julian 1899{\textendash}1975. A Biographical Memoir},
  year = {1980},
  journal = {Biographical Memoirs},
  volume = {52},
  publisher = {The National Academy Press},
  address = {Washington, DC},
  language = {eng},
}