ISBN 9780127415505 books & textbook
Freshwater Algae of North America: Ecology and Classification (Aquatic Ecology)
Wehr, John D. Sheath, Robert G. Kociolek PhD, J. Patrick Thorp, James H.
Academic Press /2002-12-03 Hardcover / 936 Pages
isbn-10: 0127415505 / isbn-13: 9780127415505