When adding a title that is in a foreign languge, follow these basic rules regardless of citation style:
For German, capitalize the first word and all nouns.
For French, capitalize THROUGH the first noun in the title.
For Italian and other languages, capitalize just the first word.
(NOTE: Always capitalize all proper nouns.)
"The purpose of a research paper is to synthesize previous research and scholarship with your ideas on the subject. Therefore, you should feel free to use other persons' words, facts, and thoughts in your research paper, but the material you borrow must not be presented as if it were your own creation."
MLA Handbook for Writers of Research Papers. 7th Edition. New York: MLA. 55. Print.
There are quite a few different ways to cite resources in your paper. The citation style usually depends on the academic discipline involved. For example:
Check with your professor to make sure you use the required style. And whatever style you choose, BE CONSISTENT!