Manual of geology: treating of the principles of the science with special reference to American geological history
Draft environmental impact statement prepared on the proposed Point Reyes/Farallon Islands Marine Sanctuary
Final programmatic environmental impact statement vegetation treatments using aminopyralid, fluroxypyr, and rimsulfuron on Bureau of Land Management lands in 17 western states
The contemporary and subfossil moss assemblages of a high Arctic upland southern Piper Pass northern Ellesmere Island, N.W.T
