Cronin, Doreen. Click, clack, moo : cows that type / by Doreen Cronin ; pictures by Betsy Lewin. - New York : Scholastic Inc., 2001. - [28] p. : chiefly col. ill. ; 26 cm. ISBN: 0-439-21648-6 Subjects--Topical Terms: Cows--Pictorial works--Juvenile fiction.