APA (7th ed.) Citation

Powys, L. (1966). Thirteen worthies. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Powys, Llewelyn. Thirteen Worthies. N.Y.: Books for Libraries Press, 1966.

MLA (9th ed.) Citation

Powys, Llewelyn. Thirteen Worthies. Books for Libraries Press, 1966.

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