Kwahak kisul yongŏjip : nongŏp kyŏngjehak pʻyŏn.
MLA
Korea (South). Kwahak kisul yongŏjip : nongŏp kyŏngjehak pʻyŏn. Sŏul : Munʼgyobu, [1968]
APA
Korea (South). (1968). Kwahak kisul yongŏjip : nongŏp kyŏngjehak pʻyŏn. Sŏul : Munʼgyobu.
Chicago
Korea (South). Kwahak kisul yongŏjip : nongŏp kyŏngjehak pʻyŏn. Sŏul : Munʼgyobu, [1968]