{"product_id":"the-variational-principles-of-mechanics","title":"The Variational Principles of Mechanics","description":"\u003cp\u003e\u003cstrong\u003eNew copy of The Variational Principles of Mechanics by Cornelius Lanczos.\u003c\/strong\u003e - Paperback, Published by Dover Publications, 418 pages, ISBN-13: 9780486650678, ISBN-10: 0486650677.\u003c\/p\u003e\u003cp\u003eHassle-free 30-day returns. Free shipping on orders over $35.\u003c\/p\u003e","brand":"Dover Publications","offers":[{"title":"Default Title","offer_id":46311140622570,"sku":"DS-CA-0486650677","price":47.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/1735\/7290\/files\/41PhfsSqP_L.jpg?v=1790006520","url":"https:\/\/justgreatbooks.org\/products\/the-variational-principles-of-mechanics","provider":"Just Great Books","version":"1.0","type":"link"}