| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Garden spice and wild pot-herbs: An American herbal | Paperback | 978-0-8014-9174-0 | 1955 |
| Keys to Woody Plants | " | 978-0-8014-0307-1 | 1950 |
| Poisonous Plants of the United States | " | 978-0-02-080870-1 | 1975 |
| Poisonous Plants of the United States | Hardcover | 978-1-121-47171-9 | 1972 |
C L · C. L. M · C.M. · Conrad L. · L.M. · W.C. · W. Conrad · W.L. · W. M. · Walter C. · Walter C. Muenscher · Walter Conrad · Walter Leopold · Walter M.
Cornell University Press · Macmillan · McGraw Hill