Olsen, H. (1963). Painting portraits: How to capture likeness and personality. Oak Tree Press.
芝加哥风格引文Olsen, Helen. Painting Portraits: How to Capture Likeness and Personality. London: Oak Tree Press, 1963.
MLA引文Olsen, Helen. Painting Portraits: How to Capture Likeness and Personality. Oak Tree Press, 1963.
警告：这些引文格式不一定是100％准确.