When you use a figure in your paper that has been adapted or copied directly from another source, you need to reference the original source. This reference appears as a caption underneath the figure that you copied or adapted for your paper. You do not have to create a separate entry in your References list for the figure.
Any image that is reproduced from another source also needs to come with copyright permission; it is not enough just to cite the source.
General Format 1 (Figure from a Book):