Vinacke, Harold M.
Appleton-Century-Crofts, 1950
Buku Teks
Vinache, Harold M.
George Allen and Unwin, 1950
Buku Teks
Sunoo, Harold Hakwon
Korean-American Cultural Foundation,, 1970
Buku Teks
Vinacke, Harold M.
George Allen and Unwin, 1950
Buku Teks
Vinacke, Harold M.
Appleton Century Croffs, 1959
Buku Teks