Gaya APA
Hopper, Paul. (1993).
Language Sciences volume 15 number 1 .
Great Britain:
Elsevier SciencePublisher.
Gaya Chicago
Hopper, Paul.
Language Sciences volume 15 number 1.
Great Britain:
Elsevier SciencePublisher,
1993.
Text.
Gaya MLA
Hopper, Paul.
Language Sciences volume 15 number 1.
Great Britain:
Elsevier SciencePublisher,
1993.
Text.
Gaya Turabian
Hopper, Paul.
Language Sciences volume 15 number 1.
Great Britain:
Elsevier SciencePublisher,
1993.
Print.