APA aipamena

Fries, T. M. (1861). Genera heterolichenum Europaea recognita. Edquist.

Chicago Style aipamena

Fries, Theodor Magnus. Genera Heterolichenum Europaea Recognita. Upsaliae: Edquist, 1861.

MLA aipamena

Fries, Theodor Magnus. Genera Heterolichenum Europaea Recognita. Edquist, 1861.