Fossil plants : text-book for students of botany and geology. Vol. <<II=2>> /

Autor Seward, A. C. 1863-1941
Vydáno 1910

Fossil plants : text-book for students of botany and geology. Vol. III, Pteridospermeae, cycadofilices, cordaitales, cycadophyta /

Autor Seward, A. C. 1863-1941
Vydáno 1917

Fossil plants : text-book for students of botany and geology. Vol. IV, Ginkgoales, coniferales, gnetales /

Autor Seward, A. C. 1863-1941
Vydáno 1919