TY  - GEN
AU  - Shepard,
TI  - Nomenclature based on sand-silt-clay ratios [Texto fotocopiado]
SN  - 1250$
PY  - 0000///[Society of Economic Paleontologists and Mineralogists]
CY  - [Tulsa, Okla]
PB  - 1954
KW  - 0718 s
N2  - Contém bibliografia
ER  -