Ignar, S., & Grygoruk, M. (2015). Wetlands and Water Framework Directive. Springer Nature.
芝加哥风格引文Ignar, Stefan, 与 Mateusz Grygoruk. Wetlands and Water Framework Directive. Cham: Springer Nature, 2015.
MLA引文Ignar, Stefan, 与 Mateusz Grygoruk. Wetlands and Water Framework Directive. Springer Nature, 2015.
警告：这些引文格式不一定是100％准确.