Fresh-water algae of the united states
Smith, Gilbert M
Fresh-water algae of the united states - 2nd ed. - London: McGraw-Hill Book Company, Inc., 1950 - 719p.
Science
Algae
582.26 / J0
Fresh-water algae of the united states - 2nd ed. - London: McGraw-Hill Book Company, Inc., 1950 - 719p.
Science
Algae
582.26 / J0