Answer:
Author
Title
Subject
Step-by-step explanation:
A catalog is the name given to a database that records the items found in a particular place. For example, if we are talking about a library or another place that holds written material, the catalog would be a register of all bibliographic items contained in the library. In order to ensure that these are organized, the entries of the catalog system should at least include the author, the title and the subject of the document.