Hardwick, Steve
Isdn design : a practical approach/ by Steve Hardwick - San Diego Academic Press 1989 - x, 152 p.
123249708
Digital communications
004.6 / HAR
Isdn design : a practical approach/ by Steve Hardwick - San Diego Academic Press 1989 - x, 152 p.
123249708
Digital communications
004.6 / HAR