Παραπομπή APA

Hulst, H. C. v. d. 1. (1961). Space research II: Proceedings ; organized by the Committee on Space Research-COSPAR and Consiglio Nazionale delle Ricerche. Amsterdam: North-Holland Pub. Co..

Παραπομπή Chicago Style

Hulst, H. C. van de 1918-. Space Research II: Proceedings ; Organized By the Committee On Space Research-COSPAR and Consiglio Nazionale Delle Ricerche. Amsterdam: North-Holland Pub. Co., 1961.

Παραπομπή MLA

Hulst, H. C. van de 1918-. Space Research II: Proceedings ; Organized By the Committee On Space Research-COSPAR and Consiglio Nazionale Delle Ricerche. Amsterdam: North-Holland Pub. Co., 1961.

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