1.
Ornithology, Evolution, and Philosophy The Life and Science of Ernst Mayr 1904-2005
by Haffer, Jurgen
ISBN: 9783540717782
List Price: $69.95
2.
Avian Speciation in Tropical South America : With a Systematic Survey of the Toucans (Rampas...
by Haffer, Jurgen
ISBN: 9781877973246
List Price: $19.00