Παραπομπή σε μορφή APA (7η εκδ.)

Okulich-Kazarin, V. P. (2019). Study of definition of 'educational services' in economic science. https://doi.org/10.24411/2411-0450-2019-10326

Παραπομπή σε μορφή Chicago (17η εκδ.)

Okulich-Kazarin, V. P. Study of Definition of 'Educational Services' in Economic Science. 2019. https://doi.org/10.24411/2411-0450-2019-10326.

Παραπομπή σε μορφή MLA (9th εκδ.)

Okulich-Kazarin, V. P. Study of Definition of 'Educational Services' in Economic Science. 2019. https://doi.org/10.24411/2411-0450-2019-10326.