Plato's Protagoras : a Socratic commentary - Hubbard, B. A. F.; Karnofsky, E. S (London : Duckworth, 1982)
Includes index
Keywords: Plato, -- C427-C347 B.C; Protagoras, -- c485-c411 B.C; Socrates, -- 469-399 B.C; Sophists (Greek philosophy); Ethics