Fifty years of progress, 1921-1971 =
Subtitle: 50 années de fonctionnement, 1921-1971.
Contributors: International Hydrographic Bureau.; International Hydrographic Organization.
Publisher: International Hydrographic Bureau
Published: 1971
Place of publication: Monaco
Language: eng
Number of pages: 39
Subjects: International Hydrographic Bureau -- History.; Hydrographic surveying -- History -- 20th century.
Other titles: 50 années de fonctionnement, 1921-1971.; Cinquante années de fonctionnement, 1921-1971.
Notes: Includes bibliographical references.
Cover title.
Caption title: The International Hydrographic Bureau : 50 years of progress.
At head of title: International Hydrographic Organization. Organisation hydrographique internationale.