The most recent edition of the MLA Handbook and the MLA Style Manual are available for the asking at the library Reference desk
"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 ed., p.55)
There are quite a few different writing styles and ways to cite sources. The style usually depends on the academic discipline involved. Check with your professor to make sure you use the style they require. Whatever styles you choose, BE CONSISTENT!
When citing a book or article title in a foreign languge, follow these basic rules regardless of citation style:
For German and Spanish, capitalize the first word and all nouns.
For French, capitalize all words until after the first noun in the title.
For Italian and other languages, capitalize just the first word.
(NOTE: Always capitalize all proper nouns, of course)
Key in your data and the Citation Machine will format it for you in a copyable format