GUHA, I. &. G. (2017). THE NEW GRAMMAR TREE BASIC ENGLISH GRAMMAR AND COMPOSITION - CLASS 4. OXFORD UNIVERSITY PRESS.
芝加哥风格引文GUHA, INDRANATH & GUHA. THE NEW GRAMMAR TREE BASIC ENGLISH GRAMMAR AND COMPOSITION - CLASS 4. NEW DELHI: OXFORD UNIVERSITY PRESS, 2017.
MLA引文GUHA, INDRANATH & GUHA. THE NEW GRAMMAR TREE BASIC ENGLISH GRAMMAR AND COMPOSITION - CLASS 4. OXFORD UNIVERSITY PRESS, 2017.
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