Gaya APA

Prochaska, J, O., Diclemente, C, C. (1984). The transtheoretical approach : crossing traditional boundaries of therapy . Homewood,Illinois: Dow Jones-Irwin.

Gaya MLA

Prochaska, James, O.., Diclemente, Carlo, C.. "The transtheoretical approach : crossing traditional boundaries of therapy". Homewood,Illinois: Dow Jones-Irwin, 1984. Text.