APA Style
Great Migrations. (2010).
:
National Geographics.
Chicago Style
Great Migrations.
.
:
National Geographics,
2010.
CD-ROM.
MLA Style
Great Migrations.
.
:
National Geographics,
2010.
CD-ROM.
Turabian Style
Great Migrations.
:
National Geographics,
2010.
CD-ROM.