By Ott, Ludwig, Bastible, James C., Lynch, Patrick
By Wittgenstein, Ludwig
By Fleisher, Gary R., Ludwig, Stephen
By Reece, Robert M., Ludwig, Stephen
By Fleisher, Gary R., Ludwig, Stephen, Henretig, Fred M., Ruddy, Richard M., Silverman, Benjamin K.
By Wittgenstein, Ludwig, Hacker, P. M. S., Schulte, Joachim
By Thoma, Ludwig
By Thoma, Ludwig, Gulbransson, Olaf
By Bemelmans, Ludwig
By Ludwig, Art
By Reiners, Ludwig, Wilson, L.P.R.
By Feuerbach, Ludwig
By Jaskolla, Ludwig
By Gibson, Arthur, O'Mahony, Niamh, Wittgenstein, Ludwig, Skinner, Francis
By Ombregt MD Dr., Ludwig
By Ludwig Bemelmans, Bemelmans, Ludwig
By Wittgenstein, Ludwig, Anscombe, G. E. M., von Wright, G. H.
By Merkle, Ludwig, Taylor, Ingrid
By Wittgenstein, Ludwig, Wright, G. H. von, Anscombe, G. E. M.
By Bieder, Ludwig, O'Hagan, J., Whiteside, Edwin, Paton, A.
By Lewisohn, Ludwig
By Wittgenstein, Ludwig, Russell Earl, Bertrand, Ogden, C K