McGuinness, Brian. Wittgenstein, a life : young Ludwig, 1889-1921 / Brian McGuinness. - Berkeley : University of California Press, 1988. - xii, 322 p., [8] p. of plates : ill., geneal. table, ports. ; 24 cm. Includes bibliographical references and index. ISBN: 0520064518 LCCN: 88004766 Subjects--Personal Names: Wittgenstein, Ludwig, 1889-1951. Subjects--Topical Terms: Philosophers--Biography.--Germany LC Class. No.: B3376.W564 / M39 1988 Dewey Class. No.: 192 Wit/Mcg/Wit