APA Format
Charnwood, Lord. (1917).
Abraham Lincoln / Lord Charnwood
. New York :: Pocket Books,.
MLA Format
Charnwood, Lord.
Abraham Lincoln / Lord Charnwood
. New York :: Pocket Books,, 1917
Chicago Format
Charnwood, Lord. Abraham Lincoln / Lord Charnwood. New York :: Pocket Books,, 1917.