00791cam a2200229 4500 299424440 TxAuBib 20170101120000.0 970827s1997||||||||||||||||||||||||eng|u 97065752 9780792270935 0792270932 DLC DLC TxAuBib Thornhill, Jan. Before & after : a book of nature timescapes / Jan Thornhill. Before and after. Washington, D.C. : National Geographic Society, 1997. 1 v. (unpaged) : col. ill. ; 31 cm. 20170101. Animal communities Juvenile literature. Animal communities Pictorial works.