Question

The most familiar method of locating law review and legal periodicals is the __________ to Legal Periodicals and Books.
A. Collection
B. Compilation
C. Index
D. Digest

Digest?

Answer 1

Is it this?

http://www.google.com/#q=Index+to+Legal+Periodicals+and+Books

Answer 2

I believe you are correct.

Answer 3

http://lawlibguides.byu.edu/content.php?pid=225319&sid=1961818

Answer 4

Would you believe it says a digest is an index ? :)

Answer 5

Interesting.

I was basing my answer on the use of the pronoun.

Index TO .....

Digest OF ----