APA (7th ed.) Citation

Gries, R. R. Carboniferous biostratigraphy, Western San Saba County, Texas. [publisher not identified].

Chicago Style (17th ed.) Citation

Gries, Robbie Rice. Carboniferous Biostratigraphy, Western San Saba County, Texas. 1970: [publisher not identified].

MLA (9th ed.) Citation

Gries, Robbie Rice. Carboniferous Biostratigraphy, Western San Saba County, Texas. [publisher not identified].

Warning: These citations may not always be 100% accurate.