APA (7th ed.) Citation

Washington Researchers Publishing. (1987). How to find information about service companies. Washington Researchers Pub.

Chicago Style (17th ed.) Citation

Washington Researchers Publishing. How to Find Information About Service Companies. [Washington, DC]: Washington Researchers Pub, 1987.

MLA (9th ed.) Citation

Washington Researchers Publishing. How to Find Information About Service Companies. Washington Researchers Pub, 1987.