Ilčev, S. D. (2020). Global Aeronautical Distress and Safety Systems (GADSS). Springer International Publishing.
शिकागो स्टाइल उद्धरणIlčev, Stojče Dimov. Global Aeronautical Distress and Safety Systems (GADSS). Springer International Publishing, 2020.
एमएलए उद्धरणIlčev, Stojče Dimov. Global Aeronautical Distress and Safety Systems (GADSS). Springer International Publishing, 2020.
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