APA (7 वां संस्करण) प्रशस्ति पत्र
Handbook of open-web structures / Central mechanical engineering research institute: Oxford & IBH 2nd ed (2nd ed.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Handbook of Open-web Structures / Central Mechanical Engineering Research Institute: Oxford & IBH 2nd Ed. 2nd ed.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Handbook of Open-web Structures / Central Mechanical Engineering Research Institute: Oxford & IBH 2nd Ed. 2nd ed.
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