共 15 条
[1]
BOONE RR, 1938, T N AM WILDL C, V3, P368
[2]
Dixon J., 1934, California Fish and Game, V20, P181
[3]
DIXON JS, 1928, AM FORESTS FOREST LI, V34, P143
[4]
Dixon JS, 1934, CALIF FISH GAME, V20, P315
[5]
Fischer G. A., 1944, WINTER RANGE INTERST
[6]
HASKELL ES, 1946, NATL WOOL GROWER, V36, P12
[7]
JOHNSON HG, 1944, ARIZ WILDL SPORT MAY, P11
[8]
MANN WG, 1933, UTAH AGR EXP STA EXT, V10, P38
[9]
PECHANEC J. F., 1937, Journal of the American Society of Agronomy, V29, P894
[10]
Pechanec JF, 1937, J AGRIC RES, V54, P0753