Petrov, S., Bileva, T. A key for identification of the orders from phylum Arthropoda with health and sanitary importance. Sofia: 2010 с. pg. 35-37,.
Petrov, S., Bileva, T. A key for identification of the orders from phylum Arthropoda with health and sanitary importance. Sofia: 2010 с. pg. 35-37,.
Petrov, S., Bileva, T. (2010) A key for identification of the orders from phylum Arthropoda with health and sanitary importance, Sofia: с. pg. 35-37,.
Petrov, S., & Bileva, T. (2010). A key for identification of the orders from phylum Arthropoda with health and sanitary importance. Sofia: с. pg. 35-37.
Petrov S, Bileva T. A key for identification of the orders from phylum Arthropoda with health and sanitary importance. Sofia: 2010. p. с. pg. 35-37.