Collins, H. (2014). Skills for the TOEIC® test: Speaking and writing. Harper Collins Publishers.
استشهاد بنمط شيكاغوCollins, Harper. Skills for the TOEIC® Test: Speaking and Writing. Harper Collins Publishers, 2014.
MLA استشهادCollins, Harper. Skills for the TOEIC® Test: Speaking and Writing. Harper Collins Publishers, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.