TY  - BOOK
AU  - Ratkowsky,David A.
AU  - Evans,Marc A.
AU  - Allredge,J.Richard
TI  - Cross-over experiments: design, analysis, and application 
SN  - 0824788923
PY  - 1993///
CY  - New York
PB  - Marcel Dekker
KW  - Crossover trials
ER  -