共 8 条
[1]
ALLEN JE, 1944, OREGON STATE DEP GEO, V27
[2]
GRIFFIOEN K, 1933, RECUEIL TRAV BOT NEE, V31, P782
[3]
Jeffrey E.C., 1906, 5 REPORT VERMONT STA, V6, P195
[4]
STACH E, 1934, Z JG, P297
[5]
THIESSEN R, 1938, 7021 US BUR MIN INF
[6]
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[7]
WHITE D, 1932, TREATISE SEDIMENTATI, P351
[8]
[No title captured]