APA (7th ed.) Citation

Comati, S., Schaller, H., Gesemann, W., & Krauß, R. (2012). Bulgarien-Jahrbuch 2011. Peter Lang International Academic Publishers.

Chicago Style (17th ed.) Citation

Comati, Sigrun, Helmut Schaller, Wolfgang Gesemann, and Raiko Krauß. Bulgarien-Jahrbuch 2011. Bern: Peter Lang International Academic Publishers, 2012.

MLA (9th ed.) Citation

Comati, Sigrun, et al. Bulgarien-Jahrbuch 2011. Peter Lang International Academic Publishers, 2012.