APA (7th ed.) Citation

Boyden, D. P. (1989). 1989 Gale directory of publications: Update. Gale Research.

Chicago Style (17th ed.) Citation

Boyden, Donald P. 1989 Gale Directory of Publications: Update. Detroit, Michigan: Gale Research, 1989.

MLA (9th ed.) Citation

Boyden, Donald P. 1989 Gale Directory of Publications: Update. Gale Research, 1989.

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