APA Style

Tolkien, J, R, R. (1980). Sir Gawain and The Green Knight Pearl and Sir Orfeo (1). New York: Ballantine Books.

MLA Style

Tolkien, J., R., R.. "Sir Gawain and The Green Knight Pearl and Sir Orfeo". 1 New York: Ballantine Books, 1980. Buku SMP Athalia.