When presenting a title of a published work within your text, always consult the style appropriate style guide for your particular class, publication, or reader. Though the styles are similar, there are some minor differences. I have outlined some of the main points for three common styles that you might encounter.
MLA Handbook for Writers of Research Papers (MLA)
With MLA style, you separate the title from subtitle with a semi-colon, and you should capitalize all principle words (nouns, pronouns, verbs, adjectives, adverbs, and subordinating conjunctions (after, although, as soon as, because, etc.), including those that follow hyphens in compound words.
You do not reproduce and special characters such as ALL CAPS or capitalize articles, prepositions coordinating conjunctions if they are not the first word of the title.
E.g. Memory in Hearing-Impaired Children: Implications for Vocabulary Development Attitudes toward Mental Health Workers
The Publication Manual of the American Psychological Association (APA)
With APA, you capitalize major words in the same way that you would with MLA; however, APA differs from MLA in that you should capitalize all words of four letters or more, even if they are minor (“toward” is a preposition, but has a capital in the example). As well, you capitalize both words of a hyphenated compound if first is capitalized.
E.g. Memory in Hearing-Impaired Children: Implications for Vocabulary Development Attitudes Toward Mental Health Workers
The Chicago Manual of Style
The Chicago Manual of Style states that you follow the same format as you would for headline-style titles. You should capitalize first and last words and all major words. Unlike APA but like MLA, you should have lower case letters for prepositions regardless of their length. The exceptions are prepositions that are used adverbially or adjectivally (i.e. Look Up). It also specifies that you should provide lowercase for “the second part of a species name, such as fulvescens in Acipenser fulvescens, even if it is the last word in a title or subtitle” (449).
E.g. Memory in Hearing-Impaired Children: Implications for Vocabulary Development Attitudes toward Mental Health Workers
Resources
American Psychological Association. Publication Manual of the American Psychological Association. 6th ed. Washington: APA, 2010.
Gibaldi, Joseph. MLA Handbook for Writers of Research Papers. 7th ed. New York: MLA, 2009.
University of Chicago. The Chicago Manual of Style. 16th ed. Chicago: U of Chicago P, 2010.