English language - Business English - Study and teaching - Foreign speakers.

English for the energy industry by: Campbell, Simon (Language materials, printed)

First insighs into business : students' book by: Robbins, Sue (Language materials, printed)

Intelligent business : intermediate business English by: (Language materials, printed)

Intelligent business : elementary business English by: (Language materials, printed)

Working in English : teacher's book by: Jones, Leo (Language materials, printed)