Cita APA (7a ed.)
Collins, G. R. (1973). Overcoming anxiety. Key Publishers.
Cita Chicago Style (17a ed.)
Collins, Gary R. Overcoming Anxiety. Illinois: Key Publishers, 1973.
Cita MLA (9a ed.)
Collins, Gary R. Overcoming Anxiety. Key Publishers, 1973.
Precaución: Estas citas no son 100% exactas.