Muchlis, A. (2011). Key to Speaking. Jaring Pena.
芝加哥风格引文Muchlis, Ach. Key to Speaking. Jaring Pena, 2011.
MLA引文Muchlis, Ach. Key to Speaking. Jaring Pena, 2011.
警告：这些引文格式不一定是100％准确.
APA引文
Muchlis, A. (2011). Key to Speaking. Jaring Pena.
芝加哥风格引文Muchlis, Ach. Key to Speaking. Jaring Pena, 2011.
MLA引文Muchlis, Ach. Key to Speaking. Jaring Pena, 2011.