APA (7th ed.) Citation

Drost, H. (1995). What's what and who's who in Europe. Simon & Schuster.

Chicago Style (17th ed.) Citation

Drost, Harry. What's What and Who's Who in Europe. New York: Simon & Schuster, 1995.

MLA (9th ed.) Citation

Drost, Harry. What's What and Who's Who in Europe. Simon & Schuster, 1995.