TY  - BOOK
AU  - Palmer, Harold E.
TI  - The principles of language study
PY  - 1964///
CY  - London 
PB  - Oxford University Press
KW  - Language and languages -- Study and teaching. Mystery and detective stories. Literary recreations
N2  - Two twelve-year-old sleuths solve nine puzzling cases, using sketches of important clues. Includes hints for interpreting clues and brief explanations of the investigative methods used
ER  -