APA Citation

Knickerbocker, W. S. (1970). Twentieth century English. Freeport, N.Y.: Books for Libraries Press.

Chicago Style Citation

Knickerbocker, William Skinkle. Twentieth Century English. Freeport, N.Y.: Books for Libraries Press, 1970.

MLA Citation

Knickerbocker, William Skinkle. Twentieth Century English. Freeport, N.Y.: Books for Libraries Press, 1970.

Warning: These citations may not always be 100% accurate.