TY  - BOOK
AU  - Walker,John L.B.
TI  - Classic works in RF engineering: combiners, couplers, transformers, and magnetic materials 
SN  - 1580530567 (alk. paper)
PY  - 2006///
CY  - Boston, MA
PB  - Artech House
KW  - Radio circuits
KW  - Design and construction
KW  - Radio frequency
N1  - Includes bibliographical references
ER  -