TY - BOOK AU - Zill,Dennis G. TI - Introductory calculus for business, economics, and social science SN - 053400475X AV - QA303 .Z54 U1 - 515 PY - 1977/// CY - Belmont, Calif. PB - Wadsworth Pub. Co. KW - Calculus KW - Local N1 - Includes index; Bibliography: p. 342 ER -