Pourciau, B. H. (1991). On Newton's proof that inverse-square orbits must be conics.
Chicago Style (17th ed.) CitationPourciau, Bruce H. On Newton's Proof That Inverse-square Orbits Must Be Conics. 1991.
MLA (9th ed.) CitationPourciau, Bruce H. On Newton's Proof That Inverse-square Orbits Must Be Conics. 1991.
Warning: These citations may not always be 100% accurate.