(美)Michael A. Putlack，(加)Stephen Poirier，(美)Tony Covello编著. (2017). 托福考试专项高分突破．口语．Speaking. 中国宇航出版社.
Chicago Style (17th ed.) Citation(美)Michael A. Putlack，(加)Stephen Poirier，(美)Tony Covello编著. 托福考试专项高分突破．口语．Speaking. 中国宇航出版社, 2017.
MLA (8th ed.) Citation(美)Michael A. Putlack，(加)Stephen Poirier，(美)Tony Covello编著. 托福考试专项高分突破．口语．Speaking. 中国宇航出版社, 2017.
Warning: These citations may not always be 100% accurate.