2002 · Thomas B. Mowbray, Craig R. Ely, et al. · The Academy of Natural Sciences, Philadelphia, and The American Ornithologists' Union, Washington D.C eBooks · 10
2002 · I. Lehr Brisbin, H. Douglas Pratt, et al. · The Academy of Natural Sciences, Philadelphia, and The American Ornithologists' Union, Washington D.C eBooks · 5