- Yazar Bilinmiyor
-
A Monograph of the Trilobites of North America: with Coloured Models of the Species
Jacob Green - Sylvester Graham
- Stephen Marlowe
- Prof. John Moore
- Dwight V. Swain
- Joseph A. Altsheler
- Sydney C. Grier
- Stephen Marlowe
- Albert Smith
- Netta Syrett