McKinney, M., & Johnson, S. (2009). Working across boundaries: People, nature, and regions. Lincoln Institute of Land Policy.
Cita Chicago (17th ed.)McKinney, Matthew, i Shawn Johnson. Working Across Boundaries: People, Nature, and Regions. Cambridge, Mass.: Lincoln Institute of Land Policy, 2009.
Cita MLA (9th ed.)McKinney, Matthew, i Shawn Johnson. Working Across Boundaries: People, Nature, and Regions. Lincoln Institute of Land Policy, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.