APA

Hristov S., National Conf. with Intern. Participation of the Open and Underwater Mining of Minerals. Varna, . (2009). Proceedings of the Xth Jubilee National Conference with International Participation of the Open and Underwater Mining of Minerals, June 07-11, 2009, Intern. House of Sci. "Fr. J. Curie", Varna, Bulgaria. : Sci. and Techn. Union of Mining, Geology and Metallurgy.

Chicago

Hristov Stoyan, National Conf. with Intern. Participation of the Open and Underwater Mining of Minerals. Varna, . 2009. Proceedings of the Xth Jubilee National Conference with International Participation of the Open and Underwater Mining of Minerals, June 07-11, 2009, Intern. House of Sci. "Fr. J. Curie", Varna, Bulgaria. : Sci. and Techn. Union of Mining, Geology and Metallurgy.

Harvard

Hristov S., National Conf. with Intern. Participation of the Open and Underwater Mining of Minerals. Varna, . (2009). Proceedings of the Xth Jubilee National Conference with International Participation of the Open and Underwater Mining of Minerals, June 07-11, 2009, Intern. House of Sci. "Fr. J. Curie", Varna, Bulgaria. : Sci. and Techn. Union of Mining, Geology and Metallurgy.

MLA

Hristov Stoyan, National Conf. with Intern. Participation of the Open and Underwater Mining of Minerals. Varna, . Proceedings of the Xth Jubilee National Conference with International Participation of the Open and Underwater Mining of Minerals, June 07-11, 2009, Intern. House of Sci. "Fr. J. Curie", Varna, Bulgaria. : Sci. and Techn. Union of Mining, Geology and Metallurgy. 2009.