Philadelphia Museum of Art. Memorial Hall. Wilstach Collection, Fairmount Park Commission (Philadelphia, Pa.), Memorial Hall (Philadelphia, Pa.), Wilstach, W. P., Brockwell, M. W., & Bye, A. E. (1922). Catalogue of the W.P. Wilstach collection: Memorial Hall. Commissioners of Fairmount Park.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhiladelphia Museum of Art. Memorial Hall. Wilstach Collection, Pa.) Fairmount Park Commission (Philadelphia, Pa.) Memorial Hall (Philadelphia, W. P. Wilstach, Maurice Walter Brockwell, और Arthur Edwin Bye. Catalogue of the W.P. Wilstach Collection: Memorial Hall. Philadelphia, Pa.: Commissioners of Fairmount Park, 1922.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPhiladelphia Museum of Art. Memorial Hall. Wilstach Collection, et al. Catalogue of the W.P. Wilstach Collection: Memorial Hall. Commissioners of Fairmount Park, 1922.