Link, M. (1980). Breakaway: Twenty - eight steps to a more reflective life. Argus communications.
Citazione stile Chigago Style (17a edizione)Link, Mark. Breakaway: Twenty - Eight Steps to a More Reflective Life. Texas: Argus communications, 1980.
Citatione MLA (9a ed.)Link, Mark. Breakaway: Twenty - Eight Steps to a More Reflective Life. Argus communications, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.