ECOREGIONS OF THE CONTERMINOUS UNITED-STATES

[1] AUSTIN ME, 1972, AGR HDB USDA, V296

[2] DELINEATION OF ECOSYSTEM REGIONS [J]. ENVIRONMENTAL MANAGEMENT, 1983, 7 (04) : 365 - 373

[3] Baldwin J.L., 1973, CLIMATES US

[4] BIOGEOGRAPHY [J]. CANADIAN GEOGRAPHER, 1967, 11 (04) : 312 - 326

[5] SOIL TAXONOMY AND MAPPING [J]. ANNALS OF THE ASSOCIATION OF AMERICAN GEOGRAPHERS, 1977, 67 (03) : 419 - 428

[6] THE MAJOR NATURAL REGIONS: AN ESSAY IN SYSTEMATIC GEOGRAPHY [J]. GEOGRAPHICAL JOURNAL, 1905, 25 (03) : 300 - 312

[7] HUGHES RM, 1981, ACQUISITION UTILIZAT, P92

[8] Kuchler A.W., 1970, NATIONAL ATLAS US AM, P89

[9] CORRESPONDENCE BETWEEN SPATIAL PATTERNS IN FISH ASSEMBLAGES IN OHIO STREAMS AND AQUATIC ECOREGIONS [J]. ENVIRONMENTAL MANAGEMENT, 1986, 10 (06) : 815 - 828

[10] Linthurst R.A., 1986, EPA600486007A

[1] AUSTIN ME, 1972, AGR HDB USDA, V296

[2] DELINEATION OF ECOSYSTEM REGIONS [J]. ENVIRONMENTAL MANAGEMENT, 1983, 7 (04) : 365 - 373

[3] Baldwin J.L., 1973, CLIMATES US

[4] BIOGEOGRAPHY [J]. CANADIAN GEOGRAPHER, 1967, 11 (04) : 312 - 326

[5] SOIL TAXONOMY AND MAPPING [J]. ANNALS OF THE ASSOCIATION OF AMERICAN GEOGRAPHERS, 1977, 67 (03) : 419 - 428

[6] THE MAJOR NATURAL REGIONS: AN ESSAY IN SYSTEMATIC GEOGRAPHY [J]. GEOGRAPHICAL JOURNAL, 1905, 25 (03) : 300 - 312

[7] HUGHES RM, 1981, ACQUISITION UTILIZAT, P92

[8] Kuchler A.W., 1970, NATIONAL ATLAS US AM, P89

[9] CORRESPONDENCE BETWEEN SPATIAL PATTERNS IN FISH ASSEMBLAGES IN OHIO STREAMS AND AQUATIC ECOREGIONS [J]. ENVIRONMENTAL MANAGEMENT, 1986, 10 (06) : 815 - 828

[10] Linthurst R.A., 1986, EPA600486007A