How to know the Protozoa
Subtitle: a pictured-key for identifying the more common fresh water, marine, and parisitic Protozoa, with elementary discussions of the importance of each group and of interesting facts concerning them
By: by Theodore Louis Jahn and Francis Floed Jahn.
Contributors: Jahn, Francis Floed.
Edition: Revised edition.
Series: Pictured key nature series
Publisher: W. C. Brown.
Published: 1949
Place of publication: Dubuque
Number of pages: 234
Subjects: Protozoa