APA (7. basım) Alıntı

Janssen, S. (2016). The world almanac and book of facts 2016. World Almanac Books.

Chicago Style (17. basım) Atıf

Janssen, Sarah. The World Almanac and Book of Facts 2016. New York: World Almanac Books, 2016.

MLA (9th ed.) Atıf

Janssen, Sarah. The World Almanac and Book of Facts 2016. World Almanac Books, 2016.