http://www.histarmar.com.ar/Malvinas...ritishview.htm gives some exact references at Kew including:-
British official records:
Logs:
HMS Invincible ship log (ADM 53/189407); HMS Hermes ship log (ADM 53/189351); HMS Avenger ship log (ADM 53/190138) y HMS Exeter ship log (ADM 53/189189).
Records of Operations:
Exocet Attack, 25th May (PREM 19/650).
Operation Corporate – Analysis of Exocet firing 30 May 82 (DEFE 58/273).
Op Corporate Falklands Conflict, 820 Naval Air Squadron, HMS Invincible flight report (DEFE 69/838).
HMS Invincible Falklands Islands Campaign Diary (DEFE 69/844).
Op Corporate Falklands Conflict 801 Squadron Operational Diary (DEFE 69/1085).
An examination of Argentine air effort during the Falklands Campaign/Operational Research Branch report (DEFE 58/273).
Report of Captain Salt, Loss of HMS Sheffield, Board of Inquiry. Annex C (Naval Historic Branch).
South Atlantic Presentation Unit (82) 30 (Thatcher MSS -Churchill Archive Centre: THCR 2/6/2/163).
HMS Onyx, Report of Proceedings
HMS Valiant, Report of Proceedings (Naval Service FOI Coordination Cell – request 10-12-2010-101254-002)
All documents on the National Archives británicos (at Kew), unless contrary statement.