Styl cytowania APA

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

Styl cytowania Chicago

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

Styl cytowania MLA

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