Champion, K. S. W., Smith, P. A., & Smith-Rose, R. L. (1969). Space research IX: Proceedings of Open Meetings of Working Groups of the Eleventh Plenary Meeting of COSPAR, Tokyo, 9-21 May 1968. Amsterdam: North-Holland Publ. Co.
Παραπομπή Chicago StyleChampion, K. S. W.,, P. A. Smith, and R. L. Smith-Rose. Space Research IX: Proceedings of Open Meetings of Working Groups of the Eleventh Plenary Meeting of COSPAR, Tokyo, 9-21 May 1968. Amsterdam: North-Holland Publ. Co, 1969.
Παραπομπή MLAChampion, K. S. W.,, P. A. Smith, and R. L. Smith-Rose. Space Research IX: Proceedings of Open Meetings of Working Groups of the Eleventh Plenary Meeting of COSPAR, Tokyo, 9-21 May 1968. Amsterdam: North-Holland Publ. Co, 1969.
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