APA

Catalan Z. D., Stamenov H. & Panceva T. V. (2000). Seventy years of English and American studies in Bulgaria. : St. Kliment Ohridski Univ. Press.

Chicago

Catalan Zelma David, Stamenov Hristo and Panceva Tanja Vasileva. 2000. Seventy years of English and American studies in Bulgaria. : St. Kliment Ohridski Univ. Press.

Harvard

Catalan Z. D., Stamenov H. and Panceva T. V. (2000). Seventy years of English and American studies in Bulgaria. : St. Kliment Ohridski Univ. Press.

MLA

Catalan Zelma David, Stamenov Hristo and Panceva Tanja Vasileva. Seventy years of English and American studies in Bulgaria. : St. Kliment Ohridski Univ. Press. 2000.