Gaya APA
Rivers, Wilga M. (1970).
Teaching Foreign-Language Skills .
London:
s.n.
Gaya Chicago
Rivers, Wilga M.
Teaching Foreign-Language Skills.
London:
s.n,
1970.
Text.
Gaya MLA
Rivers, Wilga M.
Teaching Foreign-Language Skills.
London:
s.n,
1970.
Text.
Gaya Turabian
Rivers, Wilga M.
Teaching Foreign-Language Skills.
London:
s.n,
1970.
Print.