Author not established. Untitled archived PDF [editorial display title]. Date not established. EHREA archive: /library/documents/doc-0840698dd1088b411937fedf/
[1] YIA-1.tif. Original source: http://www.ehrea.org/yia-1.pdf. Preserved original: /library/originals/05b12257fcdc28558136a6f8206134019427e0222eeb36012e84368b28db18c1.pdf. SHA-256: 05b12257fcdc28558136a6f8206134019427e0222eeb36012e84368b28db18c1