Question

When you cite a book that you used in your research, the first item of information that you should show is the
a. author's first name.
b. author's last name.
c. the title of the book.
d. the number of the entry on your page.

Answer 1

I am pretty sure it's either A. or B. depending on which way you write the authors name. Hope this helps:)

Answer 2

Within the text, the first thing that you should write is B, author's last name, and then the year that book was published. 
At the end of the text, you should list the references you used, and then list the author's last name, then his first name, then the title of the book, the publisher, and the year it was published.