American Psychological Society website introduction to APA Style.
A website to get you started with APA Style.
Guidance on using MLA style to create intertextual citations and works cited from the Purdue University Online Writing Lab (OWL).
Writing resources on MLA style from the Modern Language Association
It is a good idea to use a citation tool to help you with your citations. You can use either a citation generator or a citation management tool.
A good citation management tool is Zotero. More information can be found at this link.
A good citation generator is Zbib. Check out this quick tutorial about it.