Hayhow, D. B., Eaton, M. A., Bladwell, S., Etheridge, B., Ewing, S. R., Ruddock, M., . . . Stevenson, A. (2013). status of the Hen Harrier, Circus cyaneus, in the UK and Isle of Man in 2010. Bird study, 60(4), 446-458. https://doi.org/10.1080/00063657.2013.839621
Citácia podle Chicago (17th ed.)Hayhow, Daniel B., et al. "Status of the Hen Harrier, Circus Cyaneus, in the UK and Isle of Man in 2010." Bird Study 60, no. 4 (2013): 446-458. https://doi.org/10.1080/00063657.2013.839621.
Citácia podľa MLA (8th ed.)Hayhow, Daniel B., et al. "Status of the Hen Harrier, Circus Cyaneus, in the UK and Isle of Man in 2010." Bird Study, vol. 60, no. 4, 2013, pp. 446-458, https://doi.org/10.1080/00063657.2013.839621.
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