Hallmann, C. A., Sorg, M., Jongejans, E., Siepel, H., Hofland, N., Schwan, H., . . . de Kroon, H. (2017). More than 75 percent decline over 27 years in total flying insect biomass in protected areas. PLoS One.
استشهاد بنمط شيكاغوHallmann, Caspar A., et al. "More Than 75 Percent Decline Over 27 Years in Total Flying Insect Biomass in Protected Areas." PLoS One 2017.
MLA استشهادHallmann, Caspar A., et al. "More Than 75 Percent Decline Over 27 Years in Total Flying Insect Biomass in Protected Areas." PLoS One 2017.
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