共 9 条
[1]
BETTS AD, 1935, BEE WORLD, V16, P111
[2]
Betts AD., 1920, BEE WORLD, V2, P10
[3]
BRITTAIN W. H., 1933, CANADIAN JOUR RES, V9, P334
[4]
FORBES SA, 1983, 12TH REPORT STATE EN, P10
[5]
FORBES SA, 1991, 17 REP STAT ENT NOX, P154
[6]
MAURIZO A, 1963, BEIH SCHWEIZ BIENZIG, V2, P485
[7]
THOMAS C, 1981, 10 REP STAT ENT NOX, P44
[8]
THOMAS C, 1982, 11 REP STAT ENT NOX, P65
[9]
[No title captured]