S. M. Taylor (1966). "Recent Quantitative Work on British Bird Populations. A Review". Journal of the Royal Statistical Society, Series D. 16 (2): 119–170. doi:10.2307/2986734. JSTOR2986734.
S. M. Taylor (1966). "Recent Quantitative Work on British Bird Populations. A Review". Journal of the Royal Statistical Society, Series D. 16 (2): 119–170. doi:10.2307/2986734. JSTOR2986734.