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- Author(s):
- Hegner, Robert W. (Robert William), 1880-1942, author
Cort, William W. (William Walter), 1887-1971, author
Root, Francis M. (Francis Metcalf), 1889-1934, author
- Publication:
- New York : The Macmillan Company, 1923
- Subject(s):
- Parasitology
Helminths
Arthropods
Parasites