(USGS 11 F-72-25.) [Some illustrations are colored. From material provided by Louis L. Ray.]
Notes:
(USGS 11 F-72-25.) [Some illustrations are colored. From material provided by Louis L. Ray.] * For Sale by Superintendent of Documents. Paper, 25c. (S/N 2401-02433). • Sent to Depository Libraries. Item 621
Availability:
* For Sale by Superintendent of Documents. Paper, 25c. (S/N 2401-02433). • Sent to Depository Libraries. Item 621