Barrow et al., 1995. General Technical Report - Intermountain Research Station, USDA Forest Service, INT-GTR-315: 44-45

Barrow, J. R. ; Havstad, K. M., 1995. Natural methods of establishing native plants on arid rangelands. General Technical Report - Intermountain Research Station, USDA Forest Service, INT-GTR-315: 44-45