{"product_id":"on-the-relative-sensitiveness-of-the-human-ear-for-tones-of-different-pitch-measured-by-means-of-organ-pipes-9781314235333","title":"On the Relative Sensitiveness of the Human Ear for Tones of Different Pitch, Measured by Means of Organ Pipes","description":"\u003cp\u003eZwaardemaker, H. (Hendrik), 1857-1930\u003c\/p\u003e","brand":"HardPress","offers":[{"title":"Default Title","offer_id":54359861100879,"sku":"9781314235333","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hardpress.net\/products\/on-the-relative-sensitiveness-of-the-human-ear-for-tones-of-different-pitch-measured-by-means-of-organ-pipes-9781314235333","provider":"HardPress","version":"1.0","type":"link"}