Lester, James D.
Scott, Foresman and Company, 1971
Buku Teks
Laster, James D
Scott, Foresman and Company, 1984
Buku Teks
Woods, Peter, author
Routledge, 1999
Koleksi Publik
Woods, Peter, author
Routledge , 1999
Buku Teks
Woods, Peter, author
Routledge , 2006
Buku Teks