Gaya APA

Beyer, B, K., Swanson, C, P. (NULL). Teaching thinking skills a handbook for secondary school teachers . Boston:: Boston: Allyn and Bacon; 1995..

Gaya MLA

Beyer, Barry, K.., Swanson, Carl, P.. "Teaching thinking skills a handbook for secondary school teachers". Boston:: Boston: Allyn and Bacon; 1995., NULL. Text.