Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Fitter, Julian and Fitter, Daniel and Hosking, David and Withers, Martin B.",Wildlife of the Galápagos,Update ed,Princeton University Press,2000,Princeton pocket guides,,9780691102955,,https://cir.nii.ac.jp/crid/1130000795974338688