aBritish Tourist Authority, aCommittee on Invisible Exports, & aFinancial Times, London. (1978). Tourism, a leading invisible export: Report of a one-day conference organised by the British Tourist Authority and the Committee on Invisible Exports, in co-operation with the Financial Times, at the Dorchester Hotel, London, on April 30, 1975. B.T.A.

aBritish Tourist Authority, aCommittee on Invisible Exports, and London aFinancial Times. Tourism, a Leading Invisible Export: Report of a One-day Conference Organised by the British Tourist Authority and the Committee on Invisible Exports, in Co-operation with the Financial Times, at the Dorchester Hotel, London, on April 30, 1975. London: B.T.A, 1978.

aBritish Tourist Authority, et al. Tourism, a Leading Invisible Export: Report of a One-day Conference Organised by the British Tourist Authority and the Committee on Invisible Exports, in Co-operation with the Financial Times, at the Dorchester Hotel, London, on April 30, 1975. B.T.A, 1978.