Motion pictures, January-June 1973

by Library of Congress. Copyright Office

Program building techniques. Lesson no. 422. Edutronics Systems International, Inc. 10 min., sd., color, Super 8 mm. Loop film. © Edutronics Systems International, Inc.; 31Aug71; MP24169.

MP24170.

Program testing techniques. Lesson no. 423. Edutronics Systems International, Inc. 8 min., sd., color, Super 8 mm. Loop film. © Edutronics Systems International, Inc.; 31Aug71; MP24170.

MP24171.

Analysis of file characteristics. Lesson no. 531.1. Edutronics Systems International, Inc. 6 min., sd., color, Super 8 mm. Loop film. © Edutronics International, Inc.; 11Jun71; MP24171.

MP24172.

Maintenance with sequential organization. Lesson no. 532.1. Edutronics Systems International, Inc. 9 min., sd., color, Super 8 mm. Loop film. Add. ti.: Maintenance considerations with sequential organization. © Edutronics Systems International, Inc.; 21May71; MP24172.

MP24173.

Retrieval from sequential organization. Lesson no. 532.2. Edutronics Systems International, Inc. 10 min., sd., color, Super 8 mm. Loop film. Add. ti.: Retrieval considerations with sequential organization. © Edutronics Systems International, Inc.; 21Jun71; MP24173.

MP24174.