Andresson, H., Paivel, M., & Soon, J. (1990). Saksa keele opik algajaile (2., parand. trükk.). Valgus.
Chicago Style (17th ed.) CitationAndresson, Helgi, Milvi Paivel, and Jaan Soon. Saksa Keele Opik Algajaile. 2., parand. trükk. Tallinn: Valgus, 1990.
MLA (9th ed.) CitationAndresson, Helgi, et al. Saksa Keele Opik Algajaile. 2., parand. trükk. Valgus, 1990.
Warning: These citations may not always be 100% accurate.