APA (7th ed.) Citation

Underwood, L. H. (1987). Fifteen years among the top-knots. Seoul Computer Press.

Chicago Style (17th ed.) Citation

Underwood, Lilias Horton. Fifteen Years Among the Top-knots. Seoul, Korea: Seoul Computer Press, 1987.

MLA (9th ed.) Citation

Underwood, Lilias Horton. Fifteen Years Among the Top-knots. Seoul Computer Press, 1987.