3 books • 4 series
Birds of Peru (Helm Field Guides) (Princeton Field Guides)
A Rapid Biological Assessment of the Northern Cordillera Vilcabamba, Peru (Rapid assessment program working papers, #11) (Rap Working Papers (CHUP))
The Cordillera del Condor Region of Ecuador and Peru (Rap Working Papers (CHUP)) (Rapid assessment program working papers, v. 7)