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			No cover image available Data communications networking devices by HELD, Gilbert Edition: 2nd ed. Language: English Publication details: John Wiley, Chichester ; 1989 Availability: Not available: UCSC Library: Withdrawn (1). Add to cart (remove)
			No cover image available Data communications testing and troubleshooting by HELD, Gilbert Language: English Publication details: Indianapolis, IN : Howard W. Sams ; 1988 Availability: Not available: UCSC Library: Withdrawn (1). Add to cart (remove)
			No cover image available IBM PC AT user's reference manual by HELD, Gilbert Language: English Publication details: Hasbrouck Height, NJ : Hayden ; 0 Availability: Not available: UCSC Library: Withdrawn (1). Add to cart (remove)
			No cover image available The PC Upgrader's Manual: HOW TO BUILD AND EXTEND YOUR SYSTEM by HELD, Gilbert Language: English Publication details: John Wiley & Sons ; 1988 Availability: Not available: UCSC Library: Withdrawn (1). Add to cart (remove)

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