Gaya APA
Amos, Janine, Annabel Spenceley. (2004).
Being helpful : suka menolong (1).
Daerah Istimewa Yogyakarta:
Penerbit Kanius.
Gaya Chicago
Amos, Janine, Annabel Spenceley.
Being helpful : suka menolong.
1
Daerah Istimewa Yogyakarta:
Penerbit Kanius,
2004.
Text.
Gaya MLA
Amos, Janine, Annabel Spenceley.
Being helpful : suka menolong.
1
Daerah Istimewa Yogyakarta:
Penerbit Kanius,
2004.
Text.
Gaya Turabian
Amos, Janine, Annabel Spenceley.
Being helpful : suka menolong.
1
Daerah Istimewa Yogyakarta:
Penerbit Kanius,
2004.
Print.