TY  - BOOK
AU  - Wren,Thomas
TI  - The doomsday effect
SN  - 0671655795
AV  - PS3573.R44 D6 1986
PY  - 1986///
CY  - New York
PB  - Baen Books
UR  - http://www.archive.org/details/doomsdayeffect00wren
UR  - http://www.openlibrary.org/books/OL7661244M
ER  -