APA Citation

Hagerup, O. (1938). On the origin of some angiosperms through the gnetales and the coniferae. Kobenhavn: Levin & Munksgaard.

Chicago Style Citation

Hagerup, Olaf. On the Origin of Some Angiosperms Through the Gnetales and the Coniferae. Kobenhavn: Levin & Munksgaard, 1938.

MLA Citation

Hagerup, Olaf. On the Origin of Some Angiosperms Through the Gnetales and the Coniferae. Kobenhavn: Levin & Munksgaard, 1938.

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