GUPTA, V. G. (2013). OXFORD NEW SCIENCE IN EVERYDAY LIFE CLASS- 1. OXFORD PUBLICATION.
芝加哥风格引文GUPTA, VAISHALI/ GUPTA. OXFORD NEW SCIENCE IN EVERYDAY LIFE CLASS- 1. OXFORD PUBLICATION, 2013.
MLA引文GUPTA, VAISHALI/ GUPTA. OXFORD NEW SCIENCE IN EVERYDAY LIFE CLASS- 1. OXFORD PUBLICATION, 2013.
警告：这些引文格式不一定是100％准确.