Cita APA (7th ed.)
Sipes, J. L., & Sipes, M. L. (2013). Creating green roadways: Integrating cultural, natural, and visual resources into transportation. Island Press.
Cita Chicago (17th ed.)
Sipes, James L., i Matthew L. Sipes. Creating Green Roadways: Integrating Cultural, Natural, and Visual Resources into Transportation. Washington, DC: Island Press, 2013.
Cita MLA (9th ed.)
Sipes, James L., i Matthew L. Sipes. Creating Green Roadways: Integrating Cultural, Natural, and Visual Resources into Transportation. Island Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.