Singer, B. (2012). Làm chủ giọng nói trong đầu =: Little voice mastery: how to win the war between your ears in 30 seconds or less and have an extraordinary life! Trẻ: Hà Nội.
Chicago Style citaatSinger, Blair. Làm Chủ Giọng Nói Trong đầu =: Little Voice Mastery: How to Win the War between Your Ears in 30 Seconds or Less and Have an Extraordinary Life! Trẻ: Hà Nội, 2012.
MLA citatieSinger, Blair. Làm Chủ Giọng Nói Trong đầu =: Little Voice Mastery: How to Win the War between Your Ears in 30 Seconds or Less and Have an Extraordinary Life! Trẻ: Hà Nội, 2012.
Let op: Deze citaties zijn niet altijd 100% accuraat.