Record Citations
APA CitationDeep Purple. (1991). Knocking at your back door: The best of Deep Purple in the 80's. PolyGram Records.
Chicago Style CitationDeep Purple. Knocking at Your Back Door: The Best of Deep Purple in the 80's. [Kustannuspaikka tuntematon]: PolyGram Records, 1991.
MLA CitationDeep Purple. Knocking at Your Back Door: The Best of Deep Purple in the 80's. PolyGram Records, 1991.
Harvard Style CitationDeep Purple. 1991. Knocking at your back door: The best of Deep Purple in the 80's. [Kustannuspaikka tuntematon]: PolyGram Records.
Remember to check citations for accuracy before including them in your work.