APA (7 वां संस्करण) प्रशस्ति पत्र
Hughes,Cyril. (1996). Ship performence: Technical,safety,environmental and commercial aspects (2nd ed.). LLP.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hughes,Cyril. Ship Performence: Technical,safety,environmental and Commercial Aspects. 2nd ed. New York: LLP, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hughes,Cyril. Ship Performence: Technical,safety,environmental and Commercial Aspects. 2nd ed. LLP, 1996.
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