598 P.2d 387 PACIFIC FIRST FEDERAL SAVINGS AND LOAN ASSOCIATION, Respondent, v. THE STATE OF WASHINGTON, Appellant. No. 45561.The Supreme Court of Washington. En Banc. August 2, 1979. [1] Taxation — Business and Occupation Tax — Apportionment — Investment Income. RCW 82.04.460 and implementing regulations, which permit apportionment of gross income derived from services rendered […]