# Papers on Coccidae or scale insects

> Washington :Government Printing Office,1911-1921. | U.S. Department of Agriculture, National Agricultural Library View Boo

**Wikidata**: [Q51516572](https://www.wikidata.org/wiki/Q51516572)  
**Source**: https://4ort.xyz/entity/papers-on-coccidae-or-scale-insects