Blackstone, Stella. Counting cockatoos / written by Stella Blackstone ; illustrated by Stephanie Bauer. - Cambridge, MA : Barefoot Books, 2006. - 1 v. (unpaged) : col. ill. ; 29 cm. ISBN: 9780545511513 Subjects--Topical Terms: Counting--Juvenile literature.Animals--Juvenile literature. Dewey Class. No.: 513.211