Holden, J. Milnes, author
Sir Isaac Pitman & Sons, 1960
Buku Teks
edited by Deane Carson
Richard D. Irwin, 1963
Buku Teks
edited by Benyamin Haggott Beckhart
Columbia Universary Press, 1954, 1956
Buku Teks
Lewis, M. K. (Mervyn Keith), author
Philip Allan , 1987
Buku Teks
Halm, George N., author
Richard D. Irwin, 1956
Buku Teks