Columbia subject headings:
Harvard subject headings:
German language--Foreign elements
German language--Foreign words and phrases--Polish.
German language--Grammar, Comparative--Polish.
German language--Phraseology.
German language--Semantics.
Languages in contact.
Polish language--Foreign elements
Polish language--Foreign words and phrases--German
Polish language--Grammar, Comparative--German.
Polish language--Phraseology.
Polish language--Semantics.
Princeton subject headings:
Language and languages--Foreign words and phrases.
Languages in contact.