Aldrich, J. H., Rohde, D. W., & Tofias, M. (2007). One D Is Not Enough: Measuring Conditional Party Government, 1887-2002. In D. Brady & M. D. McCubbins (Eds.), Party, Profess and Political Change in Congress: Further New Perspectives on the History of Congress. Stanford University Press.

Aldrich, J. H., David W. Rohde, and Michael Tofias. “One D Is Not Enough: Measuring Conditional Party Government, 1887-2002.” In Party, Profess and Political Change in Congress: Further New Perspectives on the History of Congress, edited by David Brady and Mathew D. McCubbins. Stanford University Press, 2007.

Aldrich JH, Rohde DW, Tofias M. One D Is Not Enough: Measuring Conditional Party Government, 1887-2002. In: Brady D, McCubbins MD, editors. Party, Profess and Political Change in Congress: Further New Perspectives on the History of Congress. Stanford University Press; 2007.

Aldrich, J. H., et al. “One D Is Not Enough: Measuring Conditional Party Government, 1887-2002.” Party, Profess and Political Change in Congress: Further New Perspectives on the History of Congress, edited by David Brady and Mathew D. McCubbins, Stanford University Press, 2007.

Aldrich JH, Rohde DW, Tofias M. One D Is Not Enough: Measuring Conditional Party Government, 1887-2002. In: Brady D, McCubbins MD, editors. Party, Profess and Political Change in Congress: Further New Perspectives on the History of Congress. Stanford University Press; 2007.