Halfman, Janet books & textbook
Alligator at Saw Grass Road - a Smithsonian's Backyard Book (Smithsonian Backyard) by Janet Halfmann (2006-09-01)
Soundprint / Mass Market Paperback
Polar Bear Horizon (Smithsonian Oceanic)
Halfman, Janet Chesterman, Adrian
Soundprints /2006-04-01 Paperback / 32 Pages
isbn-10: 1592495664 / isbn-13: 9781592495665
