@misc{indiciae6a57968a1833, title = {Standard-bred leghorns, brown, white, buff, black and silver duckwing, their origin and history and practical qualities; the standard requirements; how to mate and breed for best results; with a chapter on non-standard varieties; how to judge them; commercial leghorn egg farms — Illustration, Page 72}, year = {1911}, url = {https://www.biodiversitylibrary.org/page/18264823}, note = {Source identifier: page-18264823} }