TY  - BOOK
AU  - Crannell,Philip Wendell
TI  - The survival of the unfit: powers, principles, and practice in man-making,
AV  - BV4501 .C75 1915
PY  - 1915///]
CY  - New York
PB  - Hodder & Stoughton, George H. Doran company
N1  - Also available in digital form
UR  - http://hdl.loc.gov/loc.gdc/scd0001.00170427683
ER  -