American banker A. P. Giannini was founder of the Bank of America—the world's largest commercial bank. He was a major pioneer of branch banking.
A. P. Giannini. (2013). The Biography Channel website. Retrieved 06:53, May 19, 2013, from http://www.biography.com/people/a-p-giannini-38693.
A. P. Giannini. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/a-p-giannini-38693 [Accessed 19 May 2013].
"A. P. Giannini." 2013. The Biography Channel website. May 19 2013, 06:53 http://www.biography.com/people/a-p-giannini-38693.
"A. P. Giannini," The Biography Channel website, 2013, http://www.biography.com/people/a-p-giannini-38693 [accessed May 19, 2013].
"A. P. Giannini," The Biography Channel website, http://www.biography.com/people/a-p-giannini-38693 (accessed May 19, 2013).
A. P. Giannini [Internet]. The Biography Channel website; 2013 [cited 2013 May 19] Available from: http://www.biography.com/people/a-p-giannini-38693.
A. P. Giannini, http://www.biography.com/people/a-p-giannini-38693 (last visited May 19, 2013).
A. P. Giannini. The Biography Channel website. 2013. Available at: http://www.biography.com/people/a-p-giannini-38693. Accessed May 19, 2013.