APA - Publication Manual of the American Psychological Association, 7th Edition
Varga, E. (2025). Recycling PET packaging for the purpose of sustainable development and ecology [Članak]. Entrepreneurship, engineering and management: Climate change as an engineering challenge, Zrenjanin, Republic of Serbia. https://doi.org/10.5937/PIM25115V

Vancouver citation style
Varga E. Recycling PET packaging for the purpose of sustainable development and ecology. In: Robert M, Marija MA, editors. Entrepreneurship, engineering and management: Climate change as an engineering challenge; 26.04.2025.; Zrenjanin, Republic of Serbia. Technical College of Applied Sciences in Zrenjanin; 2025. p. 115-22. doi: 10.5937/PIM25115V

MLA - Modern Language Association, 9th Edition
Varga, Erne. "Recycling PET packaging for the purpose of sustainable development and ecology." Entrepreneurship, engineering and management: Climate change as an engineering challenge, Zrenjanin, Republic of Serbia, 26.04.2025. Ed. Robert, Molnar, and Anđelić Marija Matotek., Technical College of Applied Sciences in Zrenjanin, 2025, pp. 115-22. SCIndeks Zbornici, https://doi.org/10.5937/PIM25115V

IEEE - The Institute of Electrical and Electronics Engineers
E. Varga, "Recycling PET packaging for the purpose of sustainable development and ecology," in Entrepreneurship, engineering and management: Climate change as an engineering challenge, Zrenjanin, Republic of Serbia, 2025, pp. 115-122, [Online]. doi: 10.5937/PIM25115V

Chicago - The Chicago Manual of Style, 17th Edition
Varga, Erne. 2025. "Recycling PET packaging for the purpose of sustainable development and ecology." Paper presented at Entrepreneurship, engineering and management: Climate change as an engineering challenge, Zrenjanin, Republic of Serbia, 26.04.2025. https://doi.org/10.5937/PIM25115V.

Harvard - Harvard Style Manual
Varga, E. (2025) 'Recycling PET packaging for the purpose of sustainable development and ecology', In: Entrepreneurship, engineering and management: Climate change as an engineering challenge. Zrenjanin, Republic of Serbia, 26.04.2025., pp. 115-122. [Online]. https://doi.org/10.5937/PIM25115V