共 99 条
[51]
KALMBACH ER, 1928, USDA FARMERS B, V1571, P1
[52]
KEMPTON FE, 1921, USDA188 CIRC, P1
[54]
MACOUN J, 1883, P T ROY SOC CANADA 1, V1, P45
[55]
MARTIN JN, 1919, BOTANY AGR STUDENTS, P84
[56]
MATHENY WA, 1931, SEED DISPERSAL STUDE, P7
[57]
McAtee W. L., 1944, JOUR FOREST, V42, P683
[58]
McATEE W. L., 1940, AUK, V57, P333
[59]
McATEE W. L., 1926, Roosevelt Wild Life Bull., V4, P7
[60]
MCATEE WL, 1918, AUK, V35, P372