Postal history of United Nations conferences
Subtitle: a study of cancellations, meters, imprints, labels, and other markings for conferences of the United Nations and its agencies = Postgeschichte der Konferenzen der Vereinten Nationen : eine Studie über Abstempelungen, Freistempel, Eindrucke, Aufkleber und andere Hinweise zu Konferenzen der Vereinten Nationen und ihrer Sonderorganisationen
By: by Blanton Clement, Jr. ; editor, UNP, United Nations Philatelists, Inc. [and] UNOP ... 
Contributors: United Nations Philatelists.; UNOP (Organization)
Series: UNP monograph ;; 3; UNOP Handbuch ;; 80
Publisher: UNOP; UNP
Published: 1981
Place of publication: Köln; Blue Island, Ill
Language: eng
Number of pages: 104
Subjects: United Nations -- Postal service.
Other titles: Postgeschichte der Konferenzen der Vereinten Nationen.
Notes: Includes bibliography.