Roy David Books

Robert Sangster
Robert Sangster

By Roy David

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Lester Piggott
Lester Piggott

By Roy David

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Lester Piggott
Lester Piggott

By Roy David

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Robert Sangster
Robert Sangster

By Roy David

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The Shergar mystery.
The Shergar mystery.

By Roy David

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Juniper MX Series: A Comprehensive Guide To Trio Technologies On The MX
Juniper MX Series: A Comprehensive Guide To Trio Technologies On The MX

By Douglas Richard, Jr. Hanks, Harry Reynolds, Douglas Richard Hanks, Roy David, David Roy, Juniper Networks, Inc, Jr. Douglas Richard Hanks, Hanks, Douglas Richard, Reynolds, Harry

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Copyright 4 Table of Contents 7 Preface 17 Second Edition Notes 17 No Apologies 19 Book Topology 21 Interface Names 23 Aggregate Ethernet Assignments 24 Layer 2 25 IPv4 Addressing 26 IPv6 Addressin...

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Enemy Within
Enemy Within

By Roy David

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A New York-based freelance photographer, Alexandra Stead, accepts a commission to photograph an army unit in Iraq, embedded with a Bradley Fighting Vehicle cavalry unit in Baghdad. Alex is told to...

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An Enemy Within
An Enemy Within

By David Roy, Roy David

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A New York-based freelance photographer, Alexandra Stead, accepts a commission to photograph an army unit in Iraq, embedded with a Bradley Fighting Vehicle cavalry unit in Baghdad. Alex is told to...

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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