Are the resource titles in your reference list capitalized correctly?
There are many types of titles which may appear in the reference list including titles of articles, journals, books, book chapters, webpages, and reports.
1. Titles of journals are written in title case which means that most words are capitalized. The only words not capitalized are small words like a, of, an, the, on, in, etc. These words are not capitalized unless they are the first word in the title or the first word after a colon.
Examples (all are journal titles):
Nursing Standard
Issues in Mental Health Nursing
Emergency Nurse: The Journal of the RCN Accident and Emergency Nursing Association
2. All other resource titles including titles of articles, books, book chapters, reports and webpages are in sentence case which means that most words are not capitalized. Only the first word in the title, the first word after a colon, and proper nouns are capitalized.
Examples:
Book -- Gerontologic nursing
Book chapter -- Implementing an evidence-based detoxification protocol for alcoholism in a residential addictions treatment facility
Report -- Long term care services in the United States: 2013 overview
Webpage -- Health communication and health information technology
More information about capitalization and italicization (including a chart with instructions for in-text use as well as reference list use) is available here, http://blog.apastyle.org/apastyle/2012/03/how-to-capitalize-and-format-reference-titles-in-apa-style.html