APA (7th ed.) Citation

Ayer, F. (1880). N.W. Ayer & Son's directory of newspapers and periodicals. N.W. Ayer & Son.

Chicago Style (17th ed.) Citation

Ayer, Firm. N.W. Ayer & Son's Directory of Newspapers and Periodicals. Philadelphia: N.W. Ayer & Son, 1880.

MLA (8th ed.) Citation

Ayer, Firm. N.W. Ayer & Son's Directory of Newspapers and Periodicals. N.W. Ayer & Son, 1880.

Warning: These citations may not always be 100% accurate.