International Symposium "Humus et Planta" Prague, Czech Republic, ScienceDirect (Online service), & Kubát, J. (1992). Humus, its structure and role in agriculture and environment: Proceedings of the 10th Symposium Humus et Planta, held in Prague, in August 19-23, 1991. Elsevier ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co..
Chicago Style (17th ed.) CitationInternational Symposium "Humus et Planta" Prague, Czech Republic, ScienceDirect (Online service), and J. Kubát. Humus, Its Structure and Role in Agriculture and Environment: Proceedings of the 10th Symposium Humus Et Planta, Held in Prague, in August 19-23, 1991. Amsterdam ; New York : New York, NY, USA: Elsevier ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co., 1992.
MLA (9th ed.) CitationInternational Symposium "Humus et Planta" Prague, Czech Republic, et al. Humus, Its Structure and Role in Agriculture and Environment: Proceedings of the 10th Symposium Humus Et Planta, Held in Prague, in August 19-23, 1991. Elsevier ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co., 1992.