APA-Zitierstil (7. Ausg.)

Spofford, W. O., Russell, C. S., & Kelly, R. A. (1976). Environmental quality management: An application to the Lower Delaware Valley. Resources for the Future.

Chicago-Zitierstil (17. Ausg.)

Spofford, Walter O., Clifford S. Russell, und Robert A. Kelly. Environmental Quality Management: An Application to the Lower Delaware Valley. Washington, D.C: Resources for the Future, 1976.

MLA-Zitierstil (9. Ausg.)

Spofford, Walter O., et al. Environmental Quality Management: An Application to the Lower Delaware Valley. Resources for the Future, 1976.