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	1.		The use of electricity in operation of audio and visual aids equipme nt / Kenneth Bale by Bale, Kenneth Series: Overseas Visual Aids Centre Publication ; no. 15 Material type: Text; Format: print ; Literary form: Not fiction Publication details: London : O.V.A.C., 1966 Availability: Items available for loan: College of Education and External Studies Library - CEES (3)Call number: P 371.33 OV E, ... Place hold Save to lists Add to cart (remove)
	2.		The use of electricity in operations of aurals and visual aids equip ment : a short guide / by Kenneth Bale. by Bale, Kenneth Series: OVAC publication ; no. 15 Material type: Text Publication details: London : Oversea Visual Aids Centre, 1968 Availability: Items available for loan: College of Education and External Studies Library - Closed Access (3)Call number: P 371.33 OVE, ... Place hold Save to lists Add to cart (remove)
	3.		The use of electricity in operations of aurals and visual aids equip ment : a short guide / by Kenneth Bale. by Bale, Kenneth Series: OVAC publication ; no. 15 Material type: Text Publication details: London : Oversea Visual Aids Centre, 1968 Availability: No items available. Save to lists Add to cart (remove)
	4.		The use of electricity in operations of aurals and visual aids equip ment : a short guide / by Kenneth Bale. by Bale, Kenneth Series: OVAC publication ; no. 15 Material type: Text Publication details: London : Oversea Visual Aids Centre, 1968 Availability: No items available. Save to lists Add to cart (remove)