APA (7th ed.) Citation

Lampe, J. R. (1986). The Bulgarian economy in the twentieth century. St. Martin's Pr.

Chicago Style (17th ed.) Citation

Lampe, John R. The Bulgarian Economy in the Twentieth Century. New York: St. Martin's Pr, 1986.

MLA (9th ed.) Citation

Lampe, John R. The Bulgarian Economy in the Twentieth Century. St. Martin's Pr, 1986.