00454nam a22001097a 4500999001700000245014800017260005800165300001000223650001600233942000700249952008800256  c16272d16272  aIS 11024:1984-Standard Reference Zero for the Calibration of Pure-tone Bone-conduction Audiometers and Guidelines for its Practical Application  aNew Delhi :bBureau of Indian Standards (BIS),c1984.  a17 p.  aAudiometers  cST  00104070aAIISHbAIISHd2020-06-23l0pST059r2020-06-23 00:00:00w2020-06-23yST