| Principia Upper School, Saint Louis, Missouri Yearbook - Blade - 1992 | $25.00 | $8.00 | | US | 26m |   |
| Principia Upper School, St Louis, Mo Yearbook - Books 1 & 2 - The Blade - 2014 | $25.00 | $8.00 | | US | 26m | |
| Principia Upper School, Saint Louis, Missouri Yearbook - Blade - 1990 | $25.00 | $8.00 | | US | 30m | |
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| Principia Mathematica Vol 1 Volume 1 1910 [Leather Bound] | $103.84 | $0.00 | | IN | 1h 30m | |
The Principia: Mathematical Principles Of Natural By Isaac Newton **Brand New**
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| Prevision Of Scientific Progress: Emanuel Swedenborg's Principia - Frank Very | $29.95 | $4.49 | | US | 2h 30m | |
Principia; Or Nature's First Principles. Theory Of By L. L. Chapman *Brand New*
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| The Principia: The Authoritative Translation And Guide: Mathematical Principles | $38.99 | $9.95 | | US | 2h 40m | |
Principia Astrologia De Financial: Principles Of Financial By Mba Bucholtz *New*
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| Principia : Mathematical Principles Of Natural Philosophy By Isaac Newton 2010 | $10.43 | $0.00 | | US | 2h 42m | |
| St Louis Mo-Missouri, New Principia School, Vintage Postcard | $8.99 | $0.99 | | US | 2h 49m | |
| Principia Philosophiae, Paperback By Cartesius, Renatus, Like New Used, Free ... | $22.34 | $0.00 | | US | 2h 59m | |
| Principia Philosophiae, Paperback By Cartesius, Renatus, Brand New, Free Ship... | $22.35 | $0.00 | | US | 2h 59m | |
Principia Qualia: Volume I: Framework & Valence By Michael Edward Johnson *New*
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| St Louis Mo-Missouri, Hs Entrance Principia Campus, Vintage Postcard | $8.99 | $0.99 | | US | 3h 39m | |
| St Louis Mo-Missouri, New Principia School Campus, Vintage Postcard | $8.99 | $0.99 | | US | 3h 40m | |
| Elsah Il-Illinois, Chapel, Principia College Vintage C1965 Souvenir Postcard | $8.99 | $0.99 | | US | 4h 17m | |