TY  - SER
AU  -  Palmer, Harold E., 
TI  -  The Principles of Language-Study 
AV  - P 
PY  - 2014///
PB  -  Project Gutenberg, 
KW  -  Languages, Modern -- Study and teaching
KW  -  Language and languages -- Study and teaching
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/46961
ER  -