Engineering diagram drawing practice. Part 4 Recommendations for logic diagrams.

I tiakina ki:

Ngā taipitopito rārangi puna kōrero
I whakaputaina:	London : British Standards Institution, 1990.
Kaituhi rangatōpū:	British Standards Institution
Hōputu:	Pukapuka

EPS Library, Level 1, Standards Collection

Ngā taipitopito puringa mai i EPS Library, Level 1, Standards Collection
Tau karanga Tārua Loan Type Tūnga Tāpae puringa
BS 5070:Part 4:1990 AU20359691B 3 day Wātea Tāpae puringa