BRITANNICA. (2016). BOOK OF ENGLISH - UKG - WORKBOOK. ENCYCLOPEDIA BRITANNICA.
Chicago Style (17th ed.) CitationBRITANNICA. BOOK OF ENGLISH - UKG - WORKBOOK. NEW DELHI: ENCYCLOPEDIA BRITANNICA, 2016.
MLA引文BRITANNICA. BOOK OF ENGLISH - UKG - WORKBOOK. ENCYCLOPEDIA BRITANNICA, 2016.
警告:這些引文格式不一定是100%准確.