Gaya APA
Riyanto, S. (2008).
1000 selected Adjectives, Adverbs, Prepositions :Used In Speaking English (Cet. 1).
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"1000 selected Adjectives, Adverbs, Prepositions :Used In Speaking English".
Cet. 1
Yogyakarta:
Pustaka Pelajar,
2008.
Text.