Proceedings, 18th annual water conference, Oct. 21,22,23-1957, Penn-Sheraton Hotle, Pittsburgh Pa.

Proceedings 18th annual water conference Oct. 21 22 23-1957 Penn-Sheraton Hotle Pittsburgh Pa.

出版社：Pittsburgh, Pa. : Engineers Society of Western Pennsylvania, 1957.

出版年：1957

作者：Engineers Society of Western Pennsylvania.

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Proceedings, 17th annual water conference, Oct. 22,23,24-1956, Penn-Sheraton Hotle, Pittsburgh 30,Pa

作者：Engineers Society of Western Pennsylvania.
出版社：Pittsburgh, Pa. : Engineers Society of Western Pennsylvania, 1956.
出版年：1956

The International Water Conference, 34th Annual Meeting, Oct. 30-Nov. 1, 1973, Pittsburgh, Pa.

作者：International Water Conference
出版社：Pitts., 1973.
出版年：1973

Proceedings of the 5th International Symposium, Pittsburgh, Pa., Oct. 16-18, 1974.

作者：International Symposium on Electroslag and Other Special Melting Technologies
出版社：[S.l. : s.n.], 1974.
出版年：1974

The International Water Conference, 33d Annual Meeting, Oct. 24-26, 1972, Pittsburgh, Pa.

作者：International Water Conference
出版社：[S.l. : s.n.].

Proceedings of the 5th International Symposium, Pittsburgh, Pa., Oct. 16-18, 1974 : pt. 1

作者：Bhat,G. K.
出版社：[S.l.] : [s.n.], 1975
出版年：1975

Proceedings of the 5th International Symposium, Pittsburgh, Pa., Oct. 16-18, 1974 : pt. 2

作者：Bhat,G. K.
出版社：[S.l.] : [s.n.], 1974
出版年：1974