Gaya APA
Our common future : the world commision on environment and development. (1987).
New York:
Oxford University.
Gaya Chicago
Our common future : the world commision on environment and development.
.
New York:
Oxford University,
1987.
Buku.
Gaya MLA
Our common future : the world commision on environment and development.
.
New York:
Oxford University,
1987.
Buku.
Gaya Turabian
Our common future : the world commision on environment and development.
New York:
Oxford University,
1987.
Buku.