Cita APA (7th ed.)

Shull, S. A. (2006). Policy by other means: Alternative adoption by presidents. Texas A&M University Press.

Cita Chicago (17th ed.)

Shull, Steven A. Policy by Other Means: Alternative Adoption by Presidents. College Station: Texas A&M University Press, 2006.

Cita MLA (9th ed.)

Shull, Steven A. Policy by Other Means: Alternative Adoption by Presidents. Texas A&M University Press, 2006.

Atenció: Aquestes cites poden no estar 100% correctes.