APA Style
Green, Carl R., Pinchot,Gifford. ().
Breaking new ground .
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Chicago Style
Green, Carl R., Pinchot,Gifford.
Breaking new ground.
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,
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.
MLA Style
Green, Carl R., Pinchot,Gifford.
Breaking new ground.
:
,
.
.
Turabian Style
Green, Carl R., Pinchot,Gifford.
Breaking new ground.
:
,
.
.