Locate the endnote you want to cite as a source. Quote the endnote directly or paraphrase the information using your own words. Put quotation marks around the information if it is a direct quote, so you do not accidentally use those words as your own in your paper.
Note the page number from which you got the endnote in the upper right corner of the note card.
Take out another note card to write down the bibliography of the source from which you got the endnote. Note the author's name, the name of the work, the year and location it was published, and the name of the publisher. In the upper right hand corner, number the source. If this is the first source you've consulted, write a number one in the corner and circle it.
On the first note card where you wrote the information from the endnote, write the corresponding source number in the upper left hand corner and circle it. You can now glance at that card and know you got it from your first source, on a particular page. Keep the informational note cards and the bibliographical note cards separate.