Songs of Korea
Sourcebook of Songs: An Anthology of Sijo Poetry is considered one of the three major collections of the traditional verse genre, sijo, along with Collection of Ancient Sijo and Popular Songs of the East; all three collections have been passed down as manuscript editions. Among the three, Sourcebook of Songs: An Anthology of Sijo Poetry exists in approximately ten different versions including Songs of Korea, Collection of Ancient Sijo, Songs of the East, and Music of Flowers.
Source: Yi, K., Pong, S., Ch'oe, Y., Ch'a, M., Ch'oe, C., Chŏng, U., . . . Mulroy, K. (n.d.). Miguk K'ŭlleŏmont'ŭ Taehak Tosŏgwan sojang Maekk'omik K'ŏlleksyŏn Han'guk munhwajae = Frederick McCormick Collection of the Special Collections in the Claremont Colleges Library.