Altner, G., Aichelin, H., & Hild, H. (1977). Wege in die Zukunft. Bensheimer Hefte.
Chicago Style (17th ed.) CitationAltner, Günter, Helmut Aichelin, and Helmut Hild. "Wege in Die Zukunft." Bensheimer Hefte 1977.
MLA (9th ed.) CitationAltner, Günter, et al. "Wege in Die Zukunft." Bensheimer Hefte, 1977.
Warning: These citations may not always be 100% accurate.