APA citiranje

Swengel, S. R., & Swengel, A. B. (2016). Status and Trend of Regal Fritillary (Speyeria idalia) (Lepidoptera: Nymphalidae) in the 4th of July Butterfly Count Program in 1977–2014. Scientifica (Cairo).

Citação norma Chicago

Swengel, Scott R., and Ann B. Swengel. "Status and Trend of Regal Fritillary (Speyeria Idalia) (Lepidoptera: Nymphalidae) in the 4th of July Butterfly Count Program in 1977–2014." Scientifica (Cairo) 2016.

MLA citiranje

Swengel, Scott R., and Ann B. Swengel. "Status and Trend of Regal Fritillary (Speyeria Idalia) (Lepidoptera: Nymphalidae) in the 4th of July Butterfly Count Program in 1977–2014." Scientifica (Cairo) 2016.