APA

(1986). White paper on the slander called "A bulgarian trail" in St. Peter's sqare. Sofia: Sofia press.

Chicago

1986. White paper on the slander called "A bulgarian trail" in St. Peter's sqare. Sofia: Sofia press.

Harvard

(1986). White paper on the slander called "A bulgarian trail" in St. Peter's sqare. Sofia: Sofia press.

MLA

White paper on the slander called "A bulgarian trail" in St. Peter's sqare. Sofia: Sofia press. 1986.