Bloomberg. Drone makers cautious of Obama plans to register the craft. IN Shipping Bulletin. Manila Bulletin.
Citace podle Chicago (17th ed.)Bloomberg. "Drone Makers Cautious of Obama Plans to Register the Craft. IN Shipping Bulletin." Manila Bulletin .
Citace podle MLA (9th ed.)Bloomberg. "Drone Makers Cautious of Obama Plans to Register the Craft. IN Shipping Bulletin." Manila Bulletin, .
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