Adler, David A. Cam Jansen and the mystery of the dinosaur bones / David A. Adler. - New York : Scholastic, 1981. - 56 p. : ill.: 22 cm. - The Cam Jansen adventure; #3 . Lex: 490 English ISBN: 0-590-46123-0 Subjects--Topical Terms: Detective and mystery stories LC Class. No.: Ad58c c1981