HMS Opportune (S20) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "HMS Opportune (S20)" in English language version.

refsWebsite

Global rank English rank

5^th place

low place

1^st place

low place

7,511^th place

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7,173^rd place

low place

btinternet.com

"Photo News". btinternet.com/~warship. Archived from the original on 12 December 2006. Retrieved 24 September 2022. ^{[self-published source]}

"HMS Opportune Submarine Reunion". www.hmsopportune.co.uk. Retrieved 11 March 2024.

"Oberon class submarine at Pounds Scrapyard in Portsmouth, United Kingdom". 50.82885400;-1.09244200: Virtual Globetrotting. 4 April 2006. Retrieved 24 September 2022.{{cite web}}: CS1 maint: location (link)

"Photo News". btinternet.com/~warship. Archived from the original on 12 December 2006. Retrieved 24 September 2022. ^{[self-published source]}

Chant, Christopher (2005). Submarine Warfare Today: The World's Deadliest Underwater Weapons Systems. Wigston: Silverdale Books. p. ^{[page needed]}. ISBN 1-84509-158-2. OCLC 156749009.
Moore, John, ed. (1977). Jane's Fighting Ships 1977-78. Jane's Fighting Ships (80th ed.). London: Jane's Yearbooks. p. 490. ISBN 0531032779. OCLC 18207174.