Agor R. (2020). Civil Engineering for Competitions (33rd.). Khanna Publisher.
芝加哥风格引文Agor R. Civil Engineering for Competitions. 33rd. New Delhi: Khanna Publisher, 2020.
MLA引文Agor R. Civil Engineering for Competitions. 33rd. Khanna Publisher, 2020.
警告：这些引文格式不一定是100％准确.