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Freshwater isopods (Asellidae) of North America
1972
Williams, W. D. (William David)
Freshwater planarians (Turbellaria) of North America
1972
Kenk, Roman,
Freshwater polychaetes (Annelida) of North America
1972
Foster, Nancy (Nancy Marie),
Freshwater isopods (Asellidae) of North America
1972
Williams, W. D (William David)
Freshwater planarians (Turbellaria) of North America
1972
Kenk, Roman
Freshwater polychaetes (Annelida) of North America
1972
Foster, Nancy (Nancy Marie)
Freshwater leeches (Annelida: Hirudinea) of North America
1972
Klemm, Donald J.
The freshwater amphipod crustaceans (Gammaridae) of North America
1972
Holsinger, John R.
Crayfishes (Astacidae) of North and Middle America
1972
Hobbs, Horton H. (Horton Holcombe)
Freshwater sphaeriacean clams (Mollusca: Pelecypoda) of North America
1972
Burch, J. B. (John Bayard)
The twelve-year-old son of a Union army doctor killed during the fighting in Fredericksburg comes to understand the meaning of war and the fine line between friends and enemies when he begins corresponding with a young Confederate prisoner of war.
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