The use of gas in the cement industry /
- New York : 1965. UNited Nations,
- 43 p. ; 32 cm.
- [United Nations. Document]) [from old catalog] .
68129531
Gas industry--Europe.
JX1977 / .A2 subser.
665.75 / UNU
68129531
Gas industry--Europe.
JX1977 / .A2 subser.
665.75 / UNU