SUMMER ALONG THE SAN JUAN. Sunday River Productions. 32 min., si., color, Super 8 mm. (Denver & Rio Grande: Narrow gauge over Cumbres) Appl. author: Alva Morrison. © Sunday River Productions, solely owned by Alva Morrison; 17Sep70; MP21197.

THE SUMMIT-5 AFFAIR. See

THE MAN FROM U.N.C.L.E.

SUN, MOON, AND EARTH. See

ELEMENTARY SCIENCE FILMSTRIPS.

THE SUPERFICIAL BACK. Teaching Films. 10 min., sd., color, 16 mm. (Guides to dissection) © Teaching Films, Inc., division of A-V Corp.; 26Feb71; MU8294.

SUPERSTITION CANYON. See

LASSIE.

THE SUPERVISOR AS A REPRESENTATIVE. See

SUPERVISOR TRAINING IN HUMAN RELATIONS.