共 19 条
[1]
Anderson E, 1949, INTROGRESSIVE HYBRID
[4]
BRAUN EL, 1950, DECIDUOUS FORESTS EA
[5]
CAIN STANLEY A., 1952, CONTR LAB VERTEBRATE BIOL UNIV MICHIGAN, V52, P1
[7]
DREW WB, 1942, U MISSOURI COLL AGR, V344
[8]
EVANS FRANCIS C, 1952, CONTR LAB VERTEBRATE BIOL UNIV MICHIGAN, V51, P1
[9]
FENNEMAN NM, 1938, PHYSIOGRAPHY EASTERN
[10]
Fernald M.L., 1950, GRAYS MANUAL BOT, V8th