Gaya APA
Lewis, Michael, Wilberg, Peter. (1990).
Business english an individualised learning programme .
Hove:
LTP.
Gaya Chicago
Lewis, Michael, Wilberg, Peter.
Business english an individualised learning programme.
Hove:
LTP,
1990.
Text.
Gaya MLA
Lewis, Michael, Wilberg, Peter.
Business english an individualised learning programme.
Hove:
LTP,
1990.
Text.
Gaya Turabian
Lewis, Michael, Wilberg, Peter.
Business english an individualised learning programme.
Hove:
LTP,
1990.
Print.