Gaya APA
Cox, J, R., Pezzullo, P, C. (2016).
Environmental communication and the public sphere (4 edition.).
cau:
Sage Publication.
Gaya MLA
Cox, J., Robert., Pezzullo, Phaedra, C..
"Environmental communication and the public sphere".
4 edition.
cau:
Sage Publication,
2016.
Buku.