yes you can, as long as you use them to support - not replace - your own conclusions. And since it is your conclusions that count here, use citations here sparingly and put the rest elsewhere in your essay.
an essay ender is a conclusion
parenthetical citations
Your conclusion should state what your essay was about. Write a short paraphrase of what you wrote in the essay.
By its very nature it is to end the essay and to summarize what you have concluded in the essay.
(apex) - a summarization of the essay
Just put all your citations at the end of your essay. In text citations should be at the end of the paragraph.
put it together to arrive at a conclusion
You should put a brief summary of what was in your essay and what this did to help prove your thesis.
an essay ender is a conclusion
A conclusion for an essay of the skeletal system will briefly state the findings during your essay and why they are important.
parenthetical citations
It summarizes the main points of the essay.
conclusion of romanticism
Conclusion for physiology
If you have written the essay, all but the conclusion, the conclusion should be drawn for the information you have already written. If you can't seem to do this, it may be that you don't have sufficient information in the essay.
A new piece of evidence that wasn't discussed in the body
With a conclusion