Gaya APA
Engel, J. Ronald, Engel, Joan Gibb. (1993).
Ethics Of Environment And Development .
Arizona:
UNIVERSITY OF ARIZONA PRESS.
Gaya Chicago
Engel, J. Ronald, Engel, Joan Gibb.
Ethics Of Environment And Development.
Arizona:
UNIVERSITY OF ARIZONA PRESS,
1993.
.
Gaya MLA
Engel, J. Ronald, Engel, Joan Gibb.
Ethics Of Environment And Development.
Arizona:
UNIVERSITY OF ARIZONA PRESS,
1993.
.
Gaya Turabian
Engel, J. Ronald, Engel, Joan Gibb.
Ethics Of Environment And Development.
Arizona:
UNIVERSITY OF ARIZONA PRESS,
1993.
.