Gaya APA
Ward, Barbara. (1980).
Only One Earth : the care and maintenance of a small planet .
New York:
Pelican Books.
Gaya Chicago
Ward, Barbara.
Only One Earth : the care and maintenance of a small planet.
New York:
Pelican Books,
1980.
Text.
Gaya MLA
Ward, Barbara.
Only One Earth : the care and maintenance of a small planet.
New York:
Pelican Books,
1980.
Text.
Gaya Turabian
Ward, Barbara.
Only One Earth : the care and maintenance of a small planet.
New York:
Pelican Books,
1980.
Print.