00421nam a2200145Ia 4500008004100000020001500041082001400056100002200070245007600092260004600168300000700214650001800221650002400239653001200263170901s1978    xx            000 0 und d  a0679210512  a591bS96W  aSwenson, Allan A. 0aWorld above your headbAnimals that live in trees, barns, and on Cliffs  aNew YorkbDavid McKay Company, Inc.c1978  a58  aPure Sciences  aZoological sciences  aZoology