APA (7th ed.) Citation

Sopko, E. (1991). The white raven and the black sheep. North-South Books.

Chicago Style (17th ed.) Citation

Sopko, Eugen. The White Raven and the Black Sheep. New York: North-South Books, 1991.

MLA (9th ed.) Citation

Sopko, Eugen. The White Raven and the Black Sheep. North-South Books, 1991.