Books by "Peter Walter Claassen"
2 books found
Lysimeter Experiments
by Benjamin Percy Young, Charles Paul Alexander, Edward Fraser Hopkins, George Cornell Supplee, Mortier Franklin Barrus, Peter Walter Claassen, Rollins Adams Emerson, Roy Glen Wiggans, Thomas Lyttleton Lyon
1920
A Monograph of the Plecoptera Or Stoneflies of America North of Mexico
by James George Needham, Peter Walter Claassen
1925