Best Way To Read Data From CSV File Then Compare And Display

I have 3 csv files as follows -

author file columns - emailID | firstname | lastname
books file columns - title | isbn | author_email | description
magazine file Columns - title | isbn | author_email | releasedate

I need to display -

1) Based on the ISBN display all books and magazines
2) All books and magazines by an author
3) All books and magazines by title

I am using Buffered reader as of now -

String csvFileToRead = "csvFiles/authors.csv";
BufferedReader br = null;
String line = "";
String splitBy = ";";

[Code] ....

I am confused about how to proceed with multiple files. Here are the approaches that i have considered -

1) change string csv csvFileToRead to a string array -

String[] csvFileToRead = {"data/autoren.csv", "data/buecher.csv", "data/zeitschriften.csv"};

Pass each index each time to a method returning all rows but getting stuck with DS to use. I think ArrayList wont suffice since i need separated data. Should i use a 2D array? Do i need to read and store data in a DS in order to achieve the goal?

2) Should i make 3 different classes with getters and setters for authors, book and magazine?