Proceedings of the Symposium on Dust Control and Air Cleaning, 4th April 1963 / arranged by the Process Engineering Group of the Institution of Mechanical Engineering.

I tiakina ki:
Ngā taipitopito rārangi puna kōrero
I whakaputaina: London : The Institution, 1964.
Kaituhi rangatōpū:
Hōputu: E hui ana Pukapuka

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