APA (7th ed.) Citation

Carl-Schirren-Gesellschaft. (2009). Jahrbuch online. Carl-Schirren-Ges.

Chicago Style (17th ed.) Citation

Carl-Schirren-Gesellschaft. Jahrbuch Online. Lüneburg: Carl-Schirren-Ges, 2009.

MLA (8th ed.) Citation

Carl-Schirren-Gesellschaft. Jahrbuch Online. Carl-Schirren-Ges, 2009.

Warning: These citations may not always be 100% accurate.