found: Geographia Ltd. Street plan of Portland, 1977.
found: LC database, 2-15-89(hdg.: Portland, Eng.)
found: Survey gaz. of the British Isles, 1943(Portland, Isle of, urb. dist., par., and peninsula in S. Dorset)
found: Barth. gaz. of places in Brit., 1986(Portland, Isle of, Dorset, limestone peninsula; no others cited)
found: Muni. yr. bk., 1988:p. lxxvi (Portland, former urban district, absorbed into the district of Weymouth and Portland, Dorset) p. 1382 (Weymouth and Portland District, 1 parish, i.e. Portland (Town Council))
