APA (7th ed.) Citation

(1928). Beiping you wu qu yu tu =: Postal map of Peiping district. s.n..

Chicago Style (17th ed.) Citation

Beiping You Wu Qu Yu Tu =: Postal Map of Peiping District. [China: s.n., 1928.

MLA (8th ed.) Citation

Beiping You Wu Qu Yu Tu =: Postal Map of Peiping District. s.n., 1928.