3 books
Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in 1990 on the Flathead National Forest, Montana Volume 1990
Results of Boreal Owl (Aegolius Funereus) Surveys on the Jefferson Division of the Lewis & Clark National Forest
Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in 1990 on the Flathead National Forest, Montana