Horseman, N. D.; Buntin, J. D. (1995). ”Regulation of Pigeon Cropmilk Secretion and Parental Behaviors by Prolactin”. Annual Review of Nutrition 15: sid. 213. doi:. PMID 8527218.
Horseman, N. D.; Buntin, J. D. (1995). ”Regulation of Pigeon Cropmilk Secretion and Parental Behaviors by Prolactin”. Annual Review of Nutrition 15: sid. 213. doi:10.1146/annurev.nu.15.070195.001241. PMID 8527218.