Éditions. pp. 30–31. ISBN 2-915379-40-8. "Sous marin de 2ème classe dit de 630 t Classe Argonaute 2" (PDF). AGASM (in French). 27 May 2018. Retrieved...
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all four submarines of that class) "Sous marin côtier de 2ème classe ou 600 tonnes Classe Circé 2" (PDF). AGASM (in French). 27 May 2018. Retrieved 31...
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1944, Volume 50, page 2. Piccinotti, Andrea (2000–2006). "Sommergibili Classe Marconi". La storia della Regia Marina Italiana nella seconda guerra mondiale...
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