Sayre, April Pulley. One is a snail, ten is a crab : a counting by feet book / April Pulley Sayre and Jeff Sayre ; illustrated by Randy Cecil. - London : Walker, 2004. - 40 p. : chiefly col. ill. ; 27 cm. Originally published : 2003. ISBN: 1844281647 Subjects--Topical Terms: Seashore--Juvenile literature.Seashore animals.Seashore--Fiction. Dewey Class. No.: 513.211