TY  - BOOK
AU  - Paul H Barrett
TI  - The Works of Charles Darwin: Vol 10: The Foundations of the Origin of Species: Two Essays Written in 1842 and 1844 (Edited 1909)
SN  - 9781315477299
PB  - Taylor and Francis
UR  - http://www.taylorfrancis.com/books/9781315477299
ER  -