レファレンスでしょう
refarensudeshō
1. Probably a reference.; Likely a reference.
Noun
#1623546
1. Probably a reference.; Likely a reference.
1. it seems; I think
2. right?; don't you agree?
1. reference
1. reference service (of a library, etc.)
1. quick reference
1. cross reference
1. reference guide
1. reference check (e.g. for a job)
1. reference book
1. preference