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		No cover image available Photoelectric tubes A. H. Sommer by Sommer, A. H Material type: Text; Format: print ; Literary form: Not fiction Publication details: London Methuen 1951 Availability: Items available for loan: IIA Library-Bangalore (1)Call number: 621.383/ SOM. Request article
		No cover image available Photoemissive materials preparation, properties and uses A. H. Sommer by Sommer, A. H Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York Wiley 1968 Availability: Items available for loan: IIA Library-Bangalore (1)Call number: 621.383/ SOM. Request article

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