Renwick, S. P. SPIE Security + Defence Industry Talks. SPIE Digital Library.
Citazione stile Chigago Style (17a edizione)Renwick, Stephen P. SPIE Security + Defence Industry Talks. SPIE Digital Library.
Citatione MLA (9a ed.)Renwick, Stephen P. SPIE Security + Defence Industry Talks. SPIE Digital Library.
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