The corresponding percentile of each scaled score varies from test to test—for example, in 2003, a scaled score of 800 in both sections of the SAT Reasoning Test corresponded to a percentile of , while a scaled score of 800 in the SAT Physics Test corresponded to the 94th percentile. The differences in what scores mean with regard to percentiles are due to the content of the exam and the caliber of students choosing to take each exam. Subject Tests are subject to intensive study (often in the form of an AP , which is relatively more difficult), and only those who know they will perform well tend to take these tests, creating a skewed distribution of scores.
Is it a historical photograph or a photograph published in a book that someone scanned and posted on line, is it a photograph of something like a sculpture? Is your paper focused on the work of the photographer, the makeup artist who prepared the model, the digital image enhancer who altered the image, the model? There is no single correct way to cite a photograph, because there are many different reasons to cite a photograph. Your instructor would be able to give you more specific advice. In general, though, the 8th edition of the MLA guide would say something like this:
"Robert Frost believed sentence tones (which he called 'sound of sense') are 'already there—living in the cave of the mouth.' He considered them 'real cave things: they were before words were' (Thompson 191). To write a 'vital sentence,' he believed, 'we must write with the ear on the speaking voice' (Thompson 159). 'The ear is the only true writer and the only true reader. Eye readers miss the best part. The sentence sound often says more than the words' (Thompson 113). According to Frost: