TY - BOOK AU - Hart, William Le Roy, AU - ED - ED - ED - ED - SN - 2 PY - 1958///46 CY - Boston PB - Heath KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Mathematics KW - Business mathematics.;Annuities.;Life insurance N1 - Tables for Mathematics of investment (150 p. at end) has special t. p; 5 ER -