Thực đơn
USS_Roper_(DD-147)Thực đơn
USS_Roper_(DD-147)Liên quan
USS Ranger (CV-61) USS Razorback (SS-394) USS Raton (SS-270) USS Rasher (SS-269) USS Ronquil (SS-396) USS Ranger (CV-4) USS Ray (SS-271) USS Redfish (SS-395) USS Redfin (SS-272) USS Rock (SS-274)Tài liệu tham khảo
WikiPedia: USS_Roper_(DD-147) http://www.homeofheroes.com/valor/1_Citations/03_w... http://www.wlb-stuttgart.de/seekrieg/42-04.htm http://digital.lib.ecu.edu/special/ead/findingaids... http://www.history.navy.mil/danfs/r9/roper.htm http://www.uboat.net/allies/merchants/ships/1566.h... http://www.uboatarchive.net/U-85.htm http://www.uboatarchive.net/U-85RoperActionReport.... https://web.archive.org/web/20070402003758/http://... https://web.archive.org/web/20070929102545/http://... https://web.archive.org/web/20130615200027/http://...