"wertheimer, michael . "
productive thinking:enlarged edition: / michael.. wertheimer - 1 ed. - uk : tavistock publications 1961. - "xvi, 302p.; 22 cm."
422 72080 1
BF203 / .W45 1959
productive thinking:enlarged edition: / michael.. wertheimer - 1 ed. - uk : tavistock publications 1961. - "xvi, 302p.; 22 cm."
422 72080 1
BF203 / .W45 1959