APA (7th ed.) Citation

Ježowiecky, J., & Brydak-Ježowiecka, D. An energy-and material-saving hot water system.

Chicago Style (17th ed.) Citation

Ježowiecky, Janusz, and Danuta Brydak-Ježowiecka. An Energy-and Material-saving Hot Water System.

MLA (9th ed.) Citation

Ježowiecky, Janusz, and Danuta Brydak-Ježowiecka. An Energy-and Material-saving Hot Water System.

Warning: These citations may not always be 100% accurate.