TY  - BOOK
AU  - Likens,Gene E.
ED  - Cary Conference
TI  - Long-term studies in ecology: approaches and alternatives 
SN  - 0387967435 (U.S.)
PY  - 1989///
CY  - New York
PB  - Springer-Verlag
N1  - Papers from the Second Cary Conference held in Millbrook, New York on May 13, 1987
ER  -