Gregory, S.
Statistical methods and the geographer - 4th ed. - London Longman 1978 - 240 p.
519.2:91 / G7
Statistical methods and the geographer - 4th ed. - London Longman 1978 - 240 p.
519.2:91 / G7
Copyright @ 2015-2021 Library, University of Moratuwa, Katubedda, Moratuwa (10400), Sri Lanka