00603nam a22002177a 4500 16804 MX-SIABUC 20260702204844.0 MX-SIABUC 050523s1970 us x j eng d 0-15-562510 C400.112 B37m FASM Barzun, Jacquer The modern researcher/ by Jacquer Barzun and Henry F. Graff New York: Harcourt, Brace and World Inc. 430 p. 1.METODOLOGÍA DE LA INVESTIGACIÓN I.Graff, Henry F., coaut. 20060419 16:39:39 1 16804 16804 0 0 000000 0 0 1 1 1 2006-04-19 0 C400.112 B37m FASM 23289 2026-07-02 20:48:44 1 2026-07-02 1