Gaya APA
Cobb, J, B, J.
(1992).
Sustainability: economics, ecology, and justice.
.
Maryknoll:
Orbis Books.
Gaya MLA
Cobb, John, B.,, Jr..
"Sustainability: economics, ecology, and justice. ".
Maryknoll:
Orbis Books,
1992.
Buku.