Please Note: this question has more than one answer.

Which of the following sources are from a book?

Morgan, Epifanio. "Dr. Sewell Talks About Tanzania." Investigating Continental
Wildlife 19.2 (2012): 12–15. Print.

Scarborough, Wilhelmina. Wildlife: The Amateurs Give Their Two Cents. Dallas:
Picky Press, 2010. Print.

Brucenstein, Paul. "Animals in Tanzania." The Experts Speak. Interested in Africa,
24 Dec. 2006. Web. 24 Oct. 2012.

Whiteheart, William. "The Uniqueness of Tanzanian Wildlife." Advice from Zoologists.
Animal Extravaganza, 5 July 2008. Web. 17 June 2012.

Yatesburg, Robert. An In-Depth Study of Tanzanian Tourism. Austin: Capitol
Brazos Publishing, 2009. Print.

Robinson, Pablo. An Expert Look at Wildlife. Denver: Snowchick Publishing,
2012. Print.