APA-viite (7. p.)

Koo, J. H. (1994). Let's speak korean. Samji Books.

Chicago-viite (17. p.)

Koo, John H. Let's Speak Korean. Seúl: Samji Books, 1994.

MLA-viite (9. p.)

Koo, John H. Let's Speak Korean. Samji Books, 1994.