| 其他書名 | Invitation Paper Read Before the Ecological Section of the Fourth International Botanical Congress at Ithaca, N.Y., U.S.A., August 18th, 1926 |
| 出版 | Kommissionsverlag von Rascher, 1928 |
| URL | http://books.google.com.hk/books?id=ZthCNQEACAAJ&hl=&source=gbs_api |