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Geothermal Systems
Geothermal Systems

By Elder John

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The Structure of the Planets
The Structure of the Planets

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Introduction to Modula-2
Introduction to Modula-2

By Jim Welsh

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Introduction to PASCAL
Introduction to PASCAL

By Jim Welsh

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Introduction to Pascal
Introduction to Pascal

By Jim Welsh

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Sequential Program Structures
Sequential Program Structures

By Jim Welsh

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Bowels of the Earth
Bowels of the Earth

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The Bowels of the Earth
The Bowels of the Earth

By Elder John

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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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