共 8 条
[1]
ARES FN, 1936, CATTLEMAN, V22, P20
[2]
ARES FRED N., 1953, JOUR RANGE MANAGEMENT, V6, P341, DOI 10.2307/3894319
[3]
HERBEL C. H., 1966, Journal of Range Management, V19, P173, DOI 10.2307/3895642
[4]
HERBEL CH, 1966, J RANGE MANAGE, V19, P177
[5]
NORRIS JJ, 1953, RANGE DAY N MEX AGR
[6]
ROACH MACK E., 1950, JOUR RANGE MANAGEMENT, V3, P182, DOI 10.2307/3894120
[7]
STODDART LA, 1955, RANGE MANAGEMENT
[8]
Valentine K. A., 1947, JOUR FOREST, V45, P749