Polish Language Yearbook IV and V

The book contains two works: 1. Język Polski Rocznik IV, the book was published in 1919 in Cracow by the Publishing House of the Polish Language Commission of the Polish Academy of Skills 2. Język Polski Rocznik V, the book was published in 1920 in Cracow by the Publishing House of the Polish Language Commission of the Polish Academy of Skills

condition: the book is soiled mainly on the sides and the last page, the cover is slightly scuffed, pages are yellowed but in good condition, stickers and library stamps