Cita APA

Echols, K. R., McCarty, J. P., Nichols, J. W., Secord, A. L., & Tillitt, D. E. Accumulation of PCB congeners in nestling tree swallows (Tachycineta bicolor) on the Hudson River, New York.

Chicago Style Citation

Echols, Kathy R., John P. McCarty, John W. Nichols, Anne L. Secord, i Donald E. Tillitt. Accumulation of PCB Congeners in Nestling Tree Swallows (Tachycineta Bicolor) On the Hudson River, New York.

Cita MLA

Echols, Kathy R., et al. Accumulation of PCB Congeners in Nestling Tree Swallows (Tachycineta Bicolor) On the Hudson River, New York.