TY - BOOK ED - United States. TI - Tax policy: investment tax credit for offshore drilling rigs needs clarification PY - 1986///?] CY - [Washington, D.C. KW - Corporations, American KW - Taxation KW - Western Hemisphere KW - Investment tax credit KW - Oil well drilling rigs N1 - MF; April 1986; CRDP Program Historic Shelflist record ER -