APA

Ecological Society of Physicians in Poland/Chair of the Hygiene and Labour Protection A. C. A. U. o. P. f. t. P. o. t. N. P., Protection of the nature is the protection of the humanity, . (1998). Proceedings of the Scientific International Conference on Nature Preservation and Human Health. Protection of the nature is the protection of the humanity. Poznan: August Cieszkowski Agricultural University.

Chicago

Ecological Society of Physicians in Poland/Chair of the Hygiene and Labour Protection August Cieszkowski Agricultural University of Poznan/League for the Preservation of the Nature Poznan, Protection of the nature is the protection of the humanity, . 1998. Proceedings of the Scientific International Conference on Nature Preservation and Human Health. Protection of the nature is the protection of the humanity. Poznan: August Cieszkowski Agricultural University.

Harvard

Ecological Society of Physicians in Poland/Chair of the Hygiene and Labour Protection A. C. A. U. o. P. f. t. P. o. t. N. P., Protection of the nature is the protection of the humanity, . (1998). Proceedings of the Scientific International Conference on Nature Preservation and Human Health. Protection of the nature is the protection of the humanity. Poznan: August Cieszkowski Agricultural University.

MLA

Ecological Society of Physicians in Poland/Chair of the Hygiene and Labour Protection August Cieszkowski Agricultural University of Poznan/League for the Preservation of the Nature Poznan, Protection of the nature is the protection of the humanity, . Proceedings of the Scientific International Conference on Nature Preservation and Human Health. Protection of the nature is the protection of the humanity. Poznan: August Cieszkowski Agricultural University. 1998.