APA (7th ed.) Citation

Douma, S., & Schreuder, H. (1992). Introduct. Prentice Hall.

Chicago Style (17th ed.) Citation

Douma, Sytse, and Hein Schreuder. Introduct. New York: Prentice Hall, 1992.

MLA (9th ed.) Citation

Douma, Sytse, and Hein Schreuder. Introduct. Prentice Hall, 1992.