Library of Congress Catalog Card Number

[tree123]

Hello, I often read such a similar sentence in a book. What does "Library of Congress Catalog Card Number" refer to?

Does it mean this book is housed in the Library of Contress in the USA?

How did the author know if the book was to be housed there with exact number? Thank you!


Library of Congress Catalog Card Number: 83-81665

 

[Tdol]

It is used as a central system of library classification.

https://en.wikipedia.org/wiki/Library_of_Congress_Classification

 

[Rover_KE]

I often read such a similar sentence in a book.

Library of Congress Catalog Card Number: 83-81665

It's a phrase — not a sentence.