Philadelphia Museum of Art, Shoemaker, I. H., Helfand, W. H., & Ittmann, J. W. (2011). Health for sale: Posters from the William H. Helfand collection : interview with William H. Helfand. Philadelphia Museum of Art.
芝加哥风格引文Philadelphia Museum of Art, Innis H. Shoemaker, William H. Helfand, 与 John W. Ittmann. Health for Sale: Posters from the William H. Helfand Collection : Interview with William H. Helfand. Philadelphia, PA: Philadelphia Museum of Art, 2011.
MLA引文Philadelphia Museum of Art, et al. Health for Sale: Posters from the William H. Helfand Collection : Interview with William H. Helfand. Philadelphia Museum of Art, 2011.
警告：这些引文格式不一定是100％准确.