SINGH LAKMIR. (2021). SCIENCE FOR NINTH CLASS PART 2 CHEMISTRY (2021.). S.CHAND.
芝加哥风格引文SINGH LAKMIR. SCIENCE FOR NINTH CLASS PART 2 CHEMISTRY. 2021. NEW DELHI: S.CHAND, 2021.
MLA引文SINGH LAKMIR. SCIENCE FOR NINTH CLASS PART 2 CHEMISTRY. 2021. S.CHAND, 2021.
警告：这些引文格式不一定是100％准确.