Arnold, Virginia A. Observing / senior authors, Virginia A. Arnold, Carl B. Smith ; authors, James Flood, Diane Lapp. - New York : Macmillan, 1991. - 400 p. : ill. ; 25 cm. - The Mcgraw-hill. lavel-9. . ISBN: 0021787204 Subjects--Topical Terms: --Readers (Primary)--Readers (Elementary) LC Class. No.: PE1119 Dewey Class. No.: 372.4 Ar658o 1991 C-