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APA Citation
Nguyen, L., Pilfold, N. W., Derocher, A. E., Stirling, I., Bohart, A. M., & Richardson, E. (2017). ringed seal (Pusa hispida) tooth annuli as an index of reproduction in the Beaufort Sea. Ecological indicators, 77, 286–292. http://access.bl.uk/ark:/81055/vdc_100045164233.0x000029