APA (7th ed.) Citation

American Marketing Association. New York Chapter. International directory of marketing research houses and services: Green book. New York Chapter, American Marketing Association.

Chicago Style (17th ed.) Citation

American Marketing Association. New York Chapter. International Directory of Marketing Research Houses and Services: Green Book. New York: New York Chapter, American Marketing Association.

MLA (9th ed.) Citation

American Marketing Association. New York Chapter. International Directory of Marketing Research Houses and Services: Green Book. New York Chapter, American Marketing Association.