ROY. ANANYA. (2012). FRANK MIDDLE SCHOOL GEOGRAPHY CLASS- 6 WORKBOOK ( 2013- 14 ). FRANK BROS.
芝加哥风格引文ROY. ANANYA. FRANK MIDDLE SCHOOL GEOGRAPHY CLASS- 6 WORKBOOK ( 2013- 14 ). FRANK BROS, 2012.
MLA引文ROY. ANANYA. FRANK MIDDLE SCHOOL GEOGRAPHY CLASS- 6 WORKBOOK ( 2013- 14 ). FRANK BROS, 2012.
警告：这些引文格式不一定是100％准确.