Crum, Howard Alvin books & textbook
Mosses of the Great Lakes Forest (Contributions from the University of Michigan Herbarium)
University Herbarium, University of Michigan /1976T Paperback / 404 Pages
Liverworts and Hornworts of Southern Michigan
Univ of Michigan Herbarium /1991T Hardcover / 233 Pages
isbn-10: 0962073318 / isbn-13: 9780962073311
A Focus on Peatlands and Peat Mosses (Great Lakes Environment) by Howard A. Crum (1992-09-30)
University of Michigan Press / Paperback
The Bryologis, Volume 1-4
American Bryological and Lichenological Society, . American Bryological Society, . Sullivant Moss Society, . Grout, A J. 1867-1947 Jennings, Otto Emery Steere, William Campbell Crum, Howard Alvin Reese, William Dean Smith, Annie Morrill Culberson, William Louis
Ulan Press /2012-10-30 Paperback / 218 Pages
