Proceedings of the 30th Annual Session : 17th to 20th Dec., 1974.

Proceedings of the 30th Annual Session : 17th to 20th Dec. 1974.

出版社：Colombo : Ceylon Association for the Advancement of Science, 19 -

作者：Sri Lanka Association for the Advancement of Science.

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30th Annual Session : 17th to 20th Dec., 1974, general programme and annual reports.

作者：Sri Lanka Association for the Advancement of Science.
出版社：Colombo : Ceylon Association for the Advancement of Science, 1974.
出版年：1974

Index to proceedings of the Trusteeship Council : 5th special session, 25 Oct.-14 Dec., 1955 : 17th

作者：United Nations.
出版社：N.Y. : [United Nations. Headquarters Library], 1956.
出版年：1956

Action of the Council, 17th Session : 9 Sept.-5 Dec., 1952.

作者：International Civil Aviation Organization.
出版社：Montreal : [International Civil Aviation Organization], 1953.
出版年：1953

Proceedings of the 30th Annual Meeting, Wash., D. C. Dec. 9-12, 1951

作者：National Research Council.
出版社：Wash. D. C. : National Research Council, c1951.
出版年：1951

Proceedings of the 28th Annual Session : 12th to 16th Dec., 1972.

作者：Ceylon Association for the Advancement of Science.
出版社：Colombo : [Ceylon Association for the Advancement of Science], 19 -

Proceedings of the 29th Annual Session : 18th to 22th Dec., 1973.

作者：Ceylon Association for the Advancement of Science.
出版社：Colombo : Ceylon Association for the Advancement of Science, 1973.
出版年：1973