APA način citiranja (7. izdanje)

Littlejohn, A. Company to company. A communicative aproach to business correspondence in english. student´s book (3a ed.).

Čikaški stil citiranja (17. izdanje)

Littlejohn, Andrew. Company to Company. A Communicative Aproach to Business Correspondence in English. Student´s Book. 3a ed.

MLA način citiranja (8. izdanje)

Littlejohn, Andrew. Company to Company. A Communicative Aproach to Business Correspondence in English. Student´s Book. 3a ed.