APA (7th ed.) Citation

Heer, O. (1875). Fossil plant species described in Flora Fossilis Arctica, Volume 3. PANGAEA.

Chicago Style (17th ed.) Citation

Heer, Oswald. Fossil Plant Species Described in Flora Fossilis Arctica, Volume 3. PANGAEA, 1875.

MLA (9th ed.) Citation

Heer, Oswald. Fossil Plant Species Described in Flora Fossilis Arctica, Volume 3. PANGAEA, 1875.

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