Cho sengo no sensei /

Mode of access: Internet.

Effects of chlorinated seawater on decapod crustaceans and Mulinia larvae /

Mode of access: Internet.

Chosŏn Yugyo yŏnwŏn /

Colophone title.

Mallyŏk simnyungnyŏn Muja iwŏl isipsail Sama pangmok.

Photocopy of the movable type (chae Sugabin) ed. in the Sŏngam munʾgo in Seoul, Korea.