| 其他書名 | John Muir, John Burroughs, Wilfred Grenfell, Robert F. Scott, Samuel Pierpont Langley, Edward Trudeau, Bishop Rowe, Jacob A. Riis, Herbert C. Hoover, Rupert Brooke, George W. Goethals |
| 出版 | Century Company, 1919 |
| URL | http://books.google.com.hk/books?id=fNZkAAAAMAAJ&hl=&source=gbs_api |