APA ציטוט

Sewell, D., Guillera-Arroita, G., Griffiths, R. A., & Beebee, T. J. C. (2012). When Is a Species Declining? Optimizing Survey Effort to Detect Population Changes in Reptiles. Public Library of Science.

Citação norma Chicago

Sewell, David, Gurutzeta Guillera-Arroita, Richard A. Griffiths, and Trevor J. C. Beebee. When Is a Species Declining? Optimizing Survey Effort to Detect Population Changes in Reptiles. Public Library of Science, 2012.

ציטוט MLA

Sewell, David, Gurutzeta Guillera-Arroita, Richard A. Griffiths, and Trevor J. C. Beebee. When Is a Species Declining? Optimizing Survey Effort to Detect Population Changes in Reptiles. Public Library of Science, 2012.