Contact the CRU by emailing cru@lubavitchuk.com or by phoning 020 8800 0022 ext.127, or 020 8800 5012.
By mail please write to
Chabad Research Unit, 117 George Street, London W1H 7HF,
or to
Chabad Research Unit,
Lubavitch House, 107-115, Stamford Hill, London N16 5RP.
