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Abbreviation:
RSPB
Usage: UK
Royal Society
for the Protection of Birds
Encyclopedia:
RSPB
RR
RRSP
RSA
RSC
RSE
RSFSR
RSI
RSJ
RSM
RSP
RSPB
RSPCA
RSS
RSV
RSVP
rt
Rt Hon
RTA
RTF
RTFM
RTLT