Sherman, A. R., & Pierce, F. J. (1996). Birds of an Iowa dooryard. University of Iowa Press.
Cita Chicago Style (17a ed.)Sherman, Althea R., y Fred J. Pierce. Birds of an Iowa Dooryard. Iowa City, Iowa: University of Iowa Press, 1996.
Cita MLA (8a ed.)Sherman, Althea R., y Fred J. Pierce. Birds of an Iowa Dooryard. University of Iowa Press, 1996.
Precaución: Estas citas no son 100% exactas.