1. Dengue haemorrhagic fever in south-east Asia;AIKEN;Transactions of the Institute of British Geographers, New Series,1978
2. An estimate of drift ice and temperature in Iceland in 1000 years;BERGTHÓRSSON;Jökull,1969
3. Urban population densities: structure and change;BERRY;Geographical Review,1963
4. Social Statistics;BLALOCK,1960
5. Air-borne acid;BROSSET;Ambio,1973