00674nam a22002171a 4500 1/18141 011120s1989 enk 1 0 eng d 0122861604 18680 DLC GR-PeUP 006.6 IN An Introduction to ray tracing / edited by Andrew S. Glassner London : Academic Press, 1989 329 p. ; 24 cm. Includes index Computer systems. Graphics and Computer. Algorithms. Glassner, Andrew S. INST UNIPILB MAIN 20040709 006.6 IN 00137622 00137622 LOAN 0 1 /webopac/covers/01/18680_0122861604.jpg