I would ordinarily say I bought a copy of The Hobbit, but I guess if I said "Hey I bought The Hobbit the other day", people would assume I meant the book. I'd

I would ordinarily say I bought a copy of The Hobbit, but I guess if I said "Hey I bought The Hobbit the other day", people would assume I meant the book. I'd normally say "I bought a copy of ISO 8601". In this case I think the author thought it was a little funny to say "I bought iso 8601".