Gaya APA

Brieger, N., Anthony, . (1989). [Secertarial Contacs : Communication skills for secertaies and personal assistants] . : Prentice Hall International.

Gaya MLA

Brieger, Nick., Anthony, . "[Secertarial Contacs : Communication skills for secertaies and personal assistants]". : Prentice Hall International, 1989. Text.