TNAG-0534-FCO40-629-UK-aid-to-Hong-Kong-Polytechnic-and-technical-institutions-1975 — Page 179

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