Research Institute of Crop Production, International Symposium Humus et Planta, & 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.
Chicago Style (17th ed.) CitationResearch Institute of Crop Production, International Symposium Humus et Planta, 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: Elsevier, 1992.
MLA (9th ed.) CitationResearch Institute of Crop Production, 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, 1992.