Gaya APA

j, L., SNYDER,C.R, . (2003). Positive Psychological Asseement : A handbook of Models and Measures . Washington, D.C.: American Psychological Association (APA).

Gaya MLA

j, LOPEZ,sHANE., SNYDER,C.R, . "Positive Psychological Asseement : A handbook of Models and Measures". Washington, D.C.: American Psychological Association (APA), 2003. Text.