Fletcher, J. (1984). Information Sources (Second Edition). ELSEVIER.
Chicago Style (17th ed.) CitationFletcher, John. Information Sources (Second Edition). ELSEVIER, 1984.
MLA (8th ed.) CitationFletcher, John. Information Sources (Second Edition). ELSEVIER, 1984.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.