Earth history field trip for high school science teachers : Jacksonville, Illinois, October 22, 1949 /
| Data(s) |
31/12/1969
|
|---|---|
| Resumo |
Gilbert O. Raasch, Conference director; Principal John Agger, Conference host. Caption title. Mode of access: Internet. |
| Formato |
con |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
[Champaign, Ill. : State of Illinois, Dept. of Registration and Education, State Geological Survey Division, |
| Direitos |
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| Palavras-Chave | #Geology |
| Tipo |
text |
