Non abbiamo ancora una biografia di Keith Hansen.
Pubblicato in Inglese
Spy satellites and other intelligence technologies that changed history
2007
Field Guide To Birds Of The Northern California Coast
2014
World of Birds
1991
North from Edmonton
2009
Mothman Squeaks
2014
Hansen's Field Guide to the Birds of the Sierra Nevada
2021
Birds of Point Reyes
2023
More Tales of a Low-Rent Birder
1994
