TY  - BOOK
AU  - Ho, Henry H.
TI  - A survey of background noise from acoustic frequencies to optic frequencies
PB  - Naval Research Laboratory
PY  - 1976
T2  - NRL memorandum report
VL  - 3429
EP  - iii, 140 p.
UR  - http://ci.nii.ac.jp/ncid/BA48397202
ER  -