35 mm FILM STRIPS
GRIFFIN TECHNICAL STUDIES
GRIFFIN & GEORGE LTD.
P.0. BOX 13, WENBLEY
T
DYES & DYEING
M&S
PHILIP HARRIS LTD. U.K..
ENVIRONMENT (SERIES) :
!!
AIR POLLUTION PART I
DV 145
爷爷
AIR POLLUTION PART II
DW 146
"
WATER POLLUTION PART I
C
D# 147
#
WATER FOLLUTION- PART-II-
DV 148
M30