APA引文

Popcak, G. K. (2018). Unworried: A life without anxiety. Our Sunday Visitor.

Chicago Style (17th ed.) Citation

Popcak, Gregory K. Unworried: A Life Without Anxiety. Huntington, IN: Our Sunday Visitor, 2018.

MLA引文

Popcak, Gregory K. Unworried: A Life Without Anxiety. Our Sunday Visitor, 2018.

警告：這些引文格式不一定是100％准確.