APA (7th ed.) Citation

Dun & Bradstreet Corporation. (1997). D & B regional business directory. Dun & Bradstreet.

Chicago Style (17th ed.) Citation

Dun & Bradstreet Corporation. D & B Regional Business Directory. Bethlehem, PA: Dun & Bradstreet, 1997.

MLA (9th ed.) Citation

Dun & Bradstreet Corporation. D & B Regional Business Directory. Dun & Bradstreet, 1997.

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