APA

Epstein R. S., Liebman N., . (1987). Biz speak. London: Harrap.

Chicago

Epstein Rachel S, Liebman Nina, . 1987. Biz speak. London: Harrap.

Harvard

Epstein R. S., Liebman N., . (1987). Biz speak. London: Harrap.

MLA

Epstein Rachel S, Liebman Nina, . Biz speak. London: Harrap. 1987.