MLA
Avraamova, E. M., and V. N. Titov. ’Structural Factors of the Development of Professional Complementary Education’. Sociologicheskaja Nauka I Social’naja Praktika, no. 2, Dec. 2015, pp. 59-75, https://www.jour.fnisc.ru/index.php/socnp/article/view/3060.