共 7 条
[2]
KEARNEY T. H, 1951, ARIZONA FLORA
[3]
KURTZ E, UNPUB
[5]
LEWKOWITSCH J, 1922, CHEM TECHNOLOGY ANAL, V2
[6]
Mehlenbacher V. C., 1946, OFFICIAL TENTATIVE M
[7]
1930, AM SOC TESTING MAT 2, P532