APA (7th ed.) Citation

Wellington, D. (1934). The theory & practice of poster art. The Signs of the times publishing company.

Chicago Style (17th ed.) Citation

Wellington, Duke. The Theory & Practice of Poster Art. Cincinnati, O.: The Signs of the times publishing company, 1934.

MLA (8th ed.) Citation

Wellington, Duke. The Theory & Practice of Poster Art. The Signs of the times publishing company, 1934.