Horn, A., & Graf, H. 1. (1981). Swell and creep characteristics of an African black clay: Report on the fourth Meeting of the European Clay Groups, Freising, September 1980. Inst. für Bodenmechanik und Grundbau.
Chicago Style (17th ed.) CitationHorn, Armin, and Hubert 19XX- Graf. Swell and Creep Characteristics of an African Black Clay: Report on the Fourth Meeting of the European Clay Groups, Freising, September 1980. Neubiberg bei München: Inst. für Bodenmechanik und Grundbau, 1981.
MLA (9th ed.) CitationHorn, Armin, and Hubert 19XX- Graf. Swell and Creep Characteristics of an African Black Clay: Report on the Fourth Meeting of the European Clay Groups, Freising, September 1980. Inst. für Bodenmechanik und Grundbau, 1981.
Warning: These citations may not always be 100% accurate.