Gaya APA
Lado, R., Fries, C, C. (1990).
English Pattern Practices : establishing the patterns as habits .
Jakarta:
Binarupa Aksara.
Gaya MLA
Lado, Robert., Fries, Charles, C..
"English Pattern Practices : establishing the patterns as habits".
Jakarta:
Binarupa Aksara,
1990.
Text.