| Title | Variation in species density of North American birds |
| Publication Type | Journal Article |
| Year of Publication | 1969 |
| Authors | Cook, R. E. |
| Volume | 18 |
| Pagination | 63-84 |
| Publisher | Systematic Zoology |
| Publication Language | en |
| Topics | Biology |
| Group | Science |
| Citation Key | 28072 |
