Paris: Société nationale d'études et de construction de moteurs d'aviation (SNECMA) c1961. First Edition. 12 leaves plus 5 leaves figures. Printed on recto only. Stapled buff printed covers. Text in French. Very Good. Wraps. 
Société nationale d'études et de construction de moteurs d'aviation (SNECMA) is the "'National Company of Research and Construction of Aviation Engines" in France. This paper discusses "optimization problems of space vehicles with plasma propulsion" (rough google translation of the title). Not in OCLC/Worldcat as of this writing.
Colombani apparently holds several patents in the field. Date based on bibliography page which does not note anything later than 1961. Presumed only edition.