C=c+v-fs turns into.
System," 2nd Ed., London. 1745 ’ W Petty, “Political Anatomy of Ireland, 1801, 5,319,867 persons; 1811, 6,084,996; 1821.
System," 2nd Ed., London. 1745 ’ W Petty, “Political Anatomy of Ireland, 1801, 5,319,867 persons; 1811, 6,084,996; 1821.