CONCEPTS OF MANAGEMENT. American Management Assn. 35 min., sd., color, 16 mm. (How to improve individual manager performance) © American Management Assn., Inc.; 6Aug69; MP21504.

CONGESTIVE HEART FAILURE: PATHOPHYSIOLOGY AND TREATMENT. American College of Cardiology & E. R. Squibb & Sons. Made by Sturgis-Grant Productions. 25 min., sd., color, 16 mm. © E. R. Squibb & Sons, Inc.; 2Apr71; MP21394.

CONQUEST OF A CONTINENT. See

SCREEN NEWS DIGEST. v. 12, issue 8.

CONSERVATION. See

PIAGET'S DEVELOPMENTAL THEORY: CONSERVATION.

CONSTRUCTION SITE. See

URBAN ECOLOGY: SIX MICROSYSTEMS.

THE CONTRACT. See

DEATH VALLEY DAYS.