Study on “double dawn”.

MLA

Liu, Ciyuan, et al. “Study on ‘Double Dawn.’” Science in China. Series A: Mathematics, Physics & Astronomy, vol. 42, no. 11, Nov. 1999, pp. 1224–32. EBSCOhost, https://doi.org/10.1007/BF02875991.

APA

Liu, C., Li, J., & Zhou, X. (1999). Study on “double dawn.” Science in China. Series A: Mathematics, Physics & Astronomy, 42(11), 1224–1232. https://doi.org/10.1007/BF02875991

Chicago

Liu, Ciyuan, Jianke Li, and Xiaolu Zhou. 1999. “Study on ‘Double Dawn.’” Science in China. Series A: Mathematics, Physics & Astronomy 42 (11): 1224–32. doi:10.1007/BF02875991.