Is deep copy necessary on passing an ArrayList to a copy constructor?

I'm trying to figure out the best way to implement the code I'm working on.

I have two options of how to pass the data to my constructor.

First way

private String ISBN;
private String title;
private ArrayList <Person>authors = new ArrayList<>();
private ArrayList <BookCategory>subjectCategories = new ArrayList<>();

/**
 * First constructor
 * @param isbn String
 * @param title String
 * @param authors ArrayList <Person>
 * @param categories ArrayList <BookCategory>
 * Calls the checkISBN method
 */
public Book (String isbn, String title,
        ArrayList <Person>authors, ArrayList <BookCategory>categories) {

    //call the checkISBN method
    boolean check = checkISBN(isbn);
    if (check ==true) {
        this.ISBN= isbn;
    }
    else {
        throw new IllegalArgumentException("Invalid ISBN");
    }
    this.title = title;
    for(int index =0; index<authors.size(); index++) {
        this.authors.add(authors.get(index));
    }
}

Second way

        private String ISBN;
        private String title;
        private ArrayList <Person>authors = new ArrayList<>();
        private ArrayList <BookCategory>subjectCategories = new ArrayList<>();

/**
 * First constructor
 * @param isbn String
 * @param title String
 * @param authors ArrayList <Person>
 * @param categories ArrayList <BookCategory>
 * Calls the checkISBN method
 */
public Book (String isbn, String title,
        ArrayList <Person>authors, ArrayList <BookCategory>categories) {

    //call the checkISBN method
    boolean check = checkISBN(isbn);
    if (check ==true) {
        this.ISBN= isbn;
    }
    else {
        throw new IllegalArgumentException("Invalid ISBN");
    }
    this.title = title;
    this.authors = authors;

Does it make a difference?

I'm not sure because it seems like it would be unnecessary to declare the Book with a copy of the Authors arraylist instead of the original arraylist.

What is the correct way to do this, and why?