APA (7th ed.) Citation

Herrmann, F. (2009). The Absorption Refrigerator as a Thermal Transformer. European Journal of Physics, 30(2), 331. https://doi.org/10.1088/0143-0807/30/2/012

Chicago Style (17th ed.) Citation

Herrmann, F. "The Absorption Refrigerator as a Thermal Transformer." European Journal of Physics 30, no. 2 (2009): 331. https://doi.org/10.1088/0143-0807/30/2/012.

MLA (9th ed.) Citation

Herrmann, F. "The Absorption Refrigerator as a Thermal Transformer." European Journal of Physics, vol. 30, no. 2, 2009, p. 331, https://doi.org/10.1088/0143-0807/30/2/012.