Gaya APA
Janssen, Sarah. (2016).
The world almanac and book of facts 2016 .
New York:
Word Almanac Books.
Gaya Chicago
Janssen, Sarah.
The world almanac and book of facts 2016.
New York:
Word Almanac Books,
2016.
Text.
Gaya MLA
Janssen, Sarah.
The world almanac and book of facts 2016.
New York:
Word Almanac Books,
2016.
Text.
Gaya Turabian
Janssen, Sarah.
The world almanac and book of facts 2016.
New York:
Word Almanac Books,
2016.
Print.