ROY, V. &. J. (2016). TREK PRIMARY SOCIAL STUDIES - CLASS 4. OXFORD UNIVERSITY PRESS.
芝加哥风格引文ROY, VIBHA & JAIN. TREK PRIMARY SOCIAL STUDIES - CLASS 4. NEW DELHI: OXFORD UNIVERSITY PRESS, 2016.
MLA引文ROY, VIBHA & JAIN. TREK PRIMARY SOCIAL STUDIES - CLASS 4. OXFORD UNIVERSITY PRESS, 2016.
警告：这些引文格式不一定是100％准确.