Assessing the differences in impact between two agricultural practices on the breeding success of purple martins (Progne subis) by following the survival of eggs in the modal clutch, 190 - 01 - 04 - LD1017 .C8133 2001 G7, Volume: Archives LD1017 .C8133 2001 G7; Volume: Carlson Library Level A Main Quarto Collection QL696.P247 G7 2001. Clarion University Archives.

Assessing the differences in impact between two agricultural practices on the breeding success of purple martins (Progne subis) by following the survival of eggs in the modal clutch, 190 - 01 - 04 - LD1017 .C8133 2001 G7, Volume: Archives LD1017 .C8133 2001 G7; Volume: Carlson Library Level A Main Quarto Collection QL696.P247 G7 2001. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/455 Accessed December 24, 2025.