Lightbulb is right (except for the year; mine was published in 1957 and 1964), if it wasn't for TYP by M. Corbridge-Patkaniowska, I'd have no prayer of figuring out the grammar of polish - it's VERY complicated and COMPLETELY different than English.
If you should graduate from that book, you can download Polish Grammar in a Nutshell by Oscar E. Swan just by typing the title in your web browser instead of a URL. It should find the download and prompt you.
except for the year; mine was published in 1957 and 1964
Oops - I meant it was published first published in 1948 and again in 1960,1964 and yet again in 1970. Hope that helps you track down a copy!