Gaya APA
Proquest Statistical abstract of the united states 2016. (2016).
United Kingdom:
Bernan.
Gaya Chicago
Proquest Statistical abstract of the united states 2016.
.
United Kingdom:
Bernan,
2016.
Text.
Gaya MLA
Proquest Statistical abstract of the united states 2016.
.
United Kingdom:
Bernan,
2016.
Text.
Gaya Turabian
Proquest Statistical abstract of the united states 2016.
United Kingdom:
Bernan,
2016.
Print.