@misc{indiciae21f317630083, 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 120}, year = {1911}, url = {https://www.biodiversitylibrary.org/page/18264873}, note = {Source identifier: page-18264873} }