TY  - BOOK
AU  - Ruckstuhl, Kathreen E., ed.
AU  - Neuhaus, Peter., ed.
TI  - Sexual segregation in vertebrates: ecology of the two sexes
SN  - 0521835224
U1  - 597.15 
PY  - 2005///
CY  - Cambridge
PB  - Cambridge university press
ER  -