Gaya APA
Hopper, Paul J.. (1993).
Language sciences Vol. 15 no. 4 1993 .
Oxford:
Pergamon .
Gaya Chicago
Hopper, Paul J..
Language sciences Vol. 15 no. 4 1993.
Oxford:
Pergamon ,
1993.
Text.
Gaya MLA
Hopper, Paul J..
Language sciences Vol. 15 no. 4 1993.
Oxford:
Pergamon ,
1993.
Text.
Gaya Turabian
Hopper, Paul J..
Language sciences Vol. 15 no. 4 1993.
Oxford:
Pergamon ,
1993.
Print.