TY  - ART
TI  - How to know the fresh-water algae; an illustrated key for identifying the more common fresh-water algae to genus, with hundreds of species named pictured and with numerous aids for their study — Illustration, Page 187
PY  - 1954
UR  - https://www.biodiversitylibrary.org/page/4597320
ID  - page-4597320
ER  -