McAuley, M., Caston, L. J., & Widowski, T. M. Laying hens prefer softer over harder mineral-based pecking stones and peck them more at the end of the light period. Elsevier.
Chicago Style (17th ed.) CitationMcAuley, Madeleine, Linda J. Caston, and Tina M. Widowski. Laying Hens Prefer Softer over Harder Mineral-based Pecking Stones and Peck Them More at the End of the Light Period. Elsevier.
MLA (9th ed.) CitationMcAuley, Madeleine, et al. Laying Hens Prefer Softer over Harder Mineral-based Pecking Stones and Peck Them More at the End of the Light Period. Elsevier.
Warning: These citations may not always be 100% accurate.