Turner, Ralph
McGraw-Hill, 1941
Buku Teks
Viorst, Milton
Chilton Books, 1965
Buku Teks
Viorst, Milton
Chilton Book, 1965
Buku Teks SO
edited by Brian Tierney, Donald Kagan, and L. Pearce Williams; consulting editor: Eugene Rice.
Random House, 1968
Buku Teks SO
Parents' Magazine's Cultural Institute, 1965
Buku Referensi