APA引文

Álvarez, C. (2008). Transtheoretical model for behavior changes: An important tool when adopting active life.

Citación estilo Chicago

Álvarez, Carlos. Transtheoretical Model for Behavior Changes: An Important Tool When Adopting Active Life. 2008.

MLA引文

Álvarez, Carlos. Transtheoretical Model for Behavior Changes: An Important Tool When Adopting Active Life. 2008.

警告：這些引文格式不一定是100％准確.