Gaya APA
Riyanto, S. (2008).
1000 Selected adjestives, adverbs, prepositions used in speaking English .
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"1000 Selected adjestives, adverbs, prepositions used in speaking English".
Yogyakarta:
Pustaka Pelajar,
2008.
Text.