APA Style
Britannica Family : Our Earth. (2009).
New Delhi:
Bpi India Pvt Ltd.
Chicago Style
Britannica Family : Our Earth.
.
New Delhi:
Bpi India Pvt Ltd,
2009.
.
MLA Style
Britannica Family : Our Earth.
.
New Delhi:
Bpi India Pvt Ltd,
2009.
.
Turabian Style
Britannica Family : Our Earth.
New Delhi:
Bpi India Pvt Ltd,
2009.
.