TY  - SER
TI  - Popular science
SN  - 0161-7370
U1  - 500 
PY  - 1988///-
CY  - U.S.A.(Popular Science, Box 54965, Boulder CO 80322-4965) : 
PB  - Times Mirror Magazines, Inc., 
N1  - 每本美金1.49元 (hb); v.232,no.6,v.233,no.1-6(1988),v.234,no.1-6,v.235,no.1-6(1989),v.236,no.1-6(1990)
ER  -