Belth, J. E. (2013). Butterflies of Indiana: A field guide. Indiana University Press.
Cita Chicago (17th ed.)Belth, Jeffrey E. Butterflies of Indiana: A Field Guide. Bloomington: Indiana University Press, 2013.
Cita MLA (9th ed.)Belth, Jeffrey E. Butterflies of Indiana: A Field Guide. Indiana University Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.