Gaya APA
HALLAWEL, F., Giggins, P. (1980).
Introducing great britain : work book/ Francis Hallawell, Paul Giggins .
Harlow:
Longman.
Gaya MLA
HALLAWEL, Francis., Giggins, Paul.
"Introducing great britain : work book/ Francis Hallawell, Paul Giggins".
Harlow:
Longman,
1980.
Text.