A methodological, psychiatric and statistical study of a large Swedish rural population,
  MLA
  Larsson, Tage, and Torsten Sjögren. A Methodological, Psychiatric and Statistical Study of a Large Swedish Rural Population. Copenhagen: Munksgaard, 1954.
  APA
  Larsson, T., & Sjögren, T. (1954). A methodological, psychiatric and statistical study of a large Swedish rural population. Copenhagen: Munksgaard.
  Chicago
  Larsson, Tage, and Torsten Sjögren. A Methodological, Psychiatric and Statistical Study of a Large Swedish Rural Population,. Copenhagen: Munksgaard, 1954.