APA
Board of Inland Revenue, . (1989). Capital gains tax indexation allowance disposals after 5 April 1988. London: Board of Inland Revenue.
Chicago
Board of Inland Revenue, . 1989. Capital gains tax indexation allowance disposals after 5 April 1988. London: Board of Inland Revenue.
Harvard
Board of Inland Revenue, . (1989). Capital gains tax indexation allowance disposals after 5 April 1988. London: Board of Inland Revenue.
MLA
Board of Inland Revenue, . Capital gains tax indexation allowance disposals after 5 April 1988. London: Board of Inland Revenue. 1989.