Douglas "20" police journal
Publisher: Douglas "20" Pub. Co.
Published: 1922
Place of publication: [San Francisco, Calif.]
Language: eng
Subjects: Police; Periodicals; Law enforcement; Police administration; San Francisco (Calif.). Police Dept.; San Francisco (Calif.).
Other titles: Douglas twenty police journal.; Douglas police journal "20"; "2-0" police journal.; Twenty police journal.; Police journal.
Notes: Description based on: Vol. 2, no. 1 (Nov. 1923); title from cover.

Official publication of the San Francisco Police Dept.