{"product_id":"on-gravitation-and-relativity-being-the-halley-lecture-delivered-on-june-12-1920-9781313045872","title":"On Gravitation and Relativity; Being the Halley Lecture, Delivered on June 12, 1920","description":"\u003cp\u003eSampson, R. A. (Ralph Allen), b. 1866\u003c\/p\u003e","brand":"HardPress","offers":[{"title":"Default Title","offer_id":54347888656719,"sku":"9781313045872","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hardpress.net\/products\/on-gravitation-and-relativity-being-the-halley-lecture-delivered-on-june-12-1920-9781313045872","provider":"HardPress","version":"1.0","type":"link"}