Microfloral zonation and correlation of some lower tertiary rocks in southwest Washington and some conclusions concerning the paleoecology of the flora /
by Dennis Michael Sparks.

APA Citation

Sparks, D. Michael. (1967). Microfloral zonation and correlation of some lower tertiary rocks in southwest Washington and some conclusions concerning the paleoecology of the flora. .

MLA Citation

Sparks, Dennis Michael. Microfloral Zonation And Correlation of Some Lower Tertiary Rocks In Southwest Washington And Some Conclusions Concerning the Paleoecology of the Flora. , 1967.

Warning: These citations may not always be complete (especially for serials).