Hild, A.L.; Shaw, N.L.; Meyer, S.E.; Booth, D.T.; McArthur, D.E., comps. 2004. Seed and soil dynamics in shrubland ecosystems: Proceedings. RMRS-P-31. Fort Collins, CO: USDA Forest Service, Rocky Mountain Research Station. 216 p.
Hild, A.L.; Shaw, N.L.; Meyer, S.E.; Booth, D.T.; McArthur, D.E., comps. 2004. Seed and soil dynamics in shrubland ecosystems: Proceedings. RMRS-P-31. Fort Collins, CO: USDA Forest Service, Rocky Mountain Research Station. 216 p.