@misc{indiciaefa21ac8aafc9, title = {Problem solved: a guide - for both the experienced and the inexperienced poultry-breeder - to the hatching of every fertile egg with the most economical outlay, and with least incidental trouble and expense — Illustration, Page 38}, year = {1920}, url = {https://www.biodiversitylibrary.org/page/31394178}, note = {Source identifier: page-31394178} }