APA (7th ed.) Citation

Ayer Press. (1974). Ayer directory of publications 1974. Ayer.

Chicago Style (17th ed.) Citation

Ayer Press. Ayer Directory of Publications 1974. Philadelphia: Ayer, 1974.

MLA (8th ed.) Citation

Ayer Press. Ayer Directory of Publications 1974. Ayer, 1974.

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