APA Style
CHARLES, SHEFFIELD. (1981).
EARTH WATCH .
NEWYORK:
.
Chicago Style
CHARLES, SHEFFIELD.
EARTH WATCH.
NEWYORK:
,
1981.
Text.
MLA Style
CHARLES, SHEFFIELD.
EARTH WATCH.
NEWYORK:
,
1981.
Text.
Turabian Style
CHARLES, SHEFFIELD.
EARTH WATCH.
NEWYORK:
,
1981.
Print.