APA-Zitierstil (7. Ausg.)

Pip, D. H. (2014). U.S. energy service companies: Industry growth trends and market potential = United States energy service companies. Nova Publishers.

Chicago-Zitierstil (17. Ausg.)

Pip, Dennis H. U.S. Energy Service Companies: Industry Growth Trends and Market Potential = United States Energy Service Companies. New York: Nova Publishers, 2014.

MLA-Zitierstil (9. Ausg.)

Pip, Dennis H. U.S. Energy Service Companies: Industry Growth Trends and Market Potential = United States Energy Service Companies. Nova Publishers, 2014.